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Dewey Decimal Classification System

600 Technology (Applied sciences)	600 General technology	600 Technology (Applied sciences) 601 Philosophy & theory 602 Miscellany  602.2 Illustrations 602.9 Commercial miscellany 603 Dictionaries & encyclopedias 604 Special topics  604.2 Technical drawing 604.7 Hazardous materials technology 604.8 History and description with respect to kinds of persons 605 Serial publications 606 Organizations 607 Education, research, related topics 608 Invention & patents  608.7 Historical, geographic, persons treatment 609 Historical, areas, persons treatment
	610 Medical sciences and medicine	610 Medical sciences; Medicine  610.6 Organizations, management, professions 610.7 Education, nursing, related topics 610.9 Historical, geographic, persons treatment 611 Human anatomy, cytology, histology 612 Human physiology  612.1 Blood and circulation 612.2 Respiration 612.3 Digestion 612.4 Secretion, excretion, related functions 612.6 Reproduction, development, maturation 612.7 Motor functions and skin (integument), hair, nails 612.8 Nervous functions Sensory functions 613 Promotion of health  613.2 Dietetics, nutrition 613.6 Special topics 613.7 Physical fitness 613.8 Substance abuse (Drug abuse), smoking 613.9 Birth control and sex hygiene 614 Incidence & prevention of disease  614.4 Incidence of and public measures to prevent disease 614.5 Incidence of and public measures to prevent specific diseases and kinds of diseases 615 Pharmacology & therapeutics, prescription drugs  615.5 Therapeutics 615.8 Specific therapies and kinds of therapies 615.9 Toxicology 616 Diseases  616.1 Diseases of the cardiovascular system 616.2 Diseases of the respiratory system 616.3 Diseases of the digestive system 616.4 Diseases of the blood-forming, lymphatic, glandular systems Diseases of the endocrine system 616.5 Diseases of the skin (integument), hair, nails 616.6 Diseases of the urogenital system Diseases of the urinary system 616.7 Diseases of the musckloskeletal system 616.8 Diseases of the nervous system and mental disorders 616.9 Other diseases 616.99 Cancer 617 Surgery & related medical specialties  617.1 Wounds and injuries 617.2 Results of injuries 617.3 Orthopedics 617.4 Surgery by systems 617.5 Regional medicine Regional surgery 617.6 Dentistry 617.7 Ophthalmology 617.8 Otology and audiology 617.9 Geriatric, pediatric, military, plastic surgery, transplantation of tissue and organs, anesthesiology 618 Gynecology & other medical specialties  618.1 Gynecology 618.2 Obstetrics 618.3 Diseases and complications of pregnancy 618.4 Childbirth Labor 618.5 Complicated labor 618.6 Normal perperium 618.7 Puerperal diseases 618.8 Obstetrical surgery 618.9 Pediatrics and geriatrics 619 Experimental medicine
	620 Engineering & allied operations	620 Engineering & allied operations  620.1 Engineering mechanics (Applied mechanics) and materials science 620.2 Sound and related vibrations 620.3 Mechanical vibration 620.8 Human-factors and safety engineering 621 Applied physics  621.1 Steam engineering 621.2 Hydraulic-power technology 621.3 Electric, electronic, magnetic, communications, computer engineering; lighting 621.4 Heat engineering and prime movers 621.5 Pneumatic, vacuum, low-temperature technologies 621.6 Fans, blowers, pumps 621.8 Machine engineering 621.9 Tools and fabricating equipment 622 Mining & related operations 623 Military & nautical engineering  623.4 Ordnance 623.7 Vehicles 623.8 Nautical engineering and seamanship 624 Civil engineering  624.1 Structural engineering and underground construction 625 Engineering of railroads, roads  625.1 Railroads 625.2 Railroad rolling stock 625.3 Inclined, mountain, ship railroads 625.4 Rapid transit systems 625.5 Cable and aerial railways 625.6 Surface rail and trolley systems 625.7 Roads 625.8 Artificial road surfaces 626 627 Hydraulic engineering 628 Sanitary & municipal engineering Environmental protection engineering  628.1 Water supply 628.3 Sewage treatment and disposal 628.4 Waste technology, public toilets, street cleaning 628.5 Pollution and industrial sanitation engineering 628.9 Other branches of sanitary and municipal engineering 629 Other branches of engineering  629.1 Aerospace engineering 629.2 Motor land vehicles, and cycles 629.3 Air-cushion vehicles (Ground-effect machines, Hovercraft) 629.4 Space Flight  629.45 Manned space flight 629.8 Automatic control engineering
	630 Agriculture	630 Agriculture  630.1 Philosophy and theory 630.2 Miscellany and scientific principles 631 Techniques, equipment, materials  631.2 Use of agricultural structures 631.3 Use of tools, machinery, apparatus, equipment 631.4 Soil science 631.5 Cultivation and harvesting 631.6 Clearing, drainage, revegetation 631.7 Water conservation 631.8 Fertilizers and soil conditioners 632 Plant injuries, diseases, pests 633 Field & plantation crops  633.1 Cereal grains (Cereals) 633.2 Forage crops 633.3 Legumes, other forage crops 633.5 Fiber crops 633.6 Sugar, syrup, starch crops 633.7 Alkaloidal crops 633.8 Other crops grown for industrial processing 634 Orchards, fruits, forestry  634.8 Grapes 634.9 Forestry 635 Garden crops (Horticulture)  635.9 Flowers and ornamental plants 636 Animal husbandry  636.1 Horses and related animals 636.2 Ruminants Bovines Cattle 636.3 Sheep and goats 636.4 Swine 636.5 Poultry Chickens 636.6 Birds other than poultry 636.7 Dogs 636.8 Cats 637 Processing dairy & related products 638 Insect culture, bees 639 Hunting, fishing, conservation  639.2 Commercial fishing, whaling, sealing 639.3 Culture of cold-blooded vertebrates 639.9 Conservation of biological resources
	640 Home economics & family living	640 Home economics & family living  640.73 Consumer education 641 Food & drink  641.1 Applied nutrition 641.2 Beverages (Drinks) 641.3 Food 641.4 Food preservation and storage 641.5 Cooking, recipes 641.6 Cooking specific materials 641.7 Specific cooking proceses and techniques 641.8 Cooking specific kinds of composite dishes 642 Meals & table service 643 Housing & household equipment 644 Household utilities 645 Household furnishings 646 Sewing, clothing, personal living  646.2 Sewing and related operations 646.4 Clothing and accessories construction 646.5 Construction of headgear 646.7 Managemennt of personal and family living Grooming 647 Management of public households  647.9 Multiple dwellings for transients, eating and drinking places 648 Housekeeping 649 Child rearing & home care of sick  649.8 Home care of sick and infirm
	650 Management & auxiliary services	650 Management & auxiliary services  650.1 Personal success in business 651 Office services  651.3 Office management 651.5 Records management 651.7 Communication Creation and transmission of records 651.8 Data processing Computer applications 652 Processes of written communication  652.3 Typewriting 652.5 Word processing 653 Shorthand 654 655 656 657 Accounting 658 General management  658.1 Organization and finance 658.2 Plant management 658.3 Personal management 658.4 Executive management 658.5 Management of production 658.7 Management of materials 658.8 management of distribution (Marketing) 659 Advertising & public relations  659.1 Advertising 659.2 Public relations
	660 Chemical engineering	660 Chemical engineering 661 Industrial chemicals technology 662 Explosives, fuels technology  662.6 Coal 663 Beverage technology 664 Food technology 665 Industrial oils, fats, waxes, gases  665.5 Petroleum 665.7 Natural gas and manufactured industrial gases 665.8 Other industrial gases 666 Ceramic & allied technologies 667 Cleaning, color, related technologies 668 Technology of other organic products  668.4 Plastics 668.9 Polymers 669 Metallurgy
	670 Manufacturing	670 Manufacturing  670.4 Special topics 671 Metalworking & metal products  671.2 Foundry practice (Casting) 671.3 Mechanical working and related processes 671.4 Electroforming of metals 671.5 Joining and cutting of metals 671.7 Finishing and surface treatment of metals 671.8 Primary products 672 Iron, steel, other iron alloys 673 Nonferrous metals 674 Lumber processing, wood products, cork 675 Leather & fur processing 676 Pulp & paper technology 677 Textiles 678 Elastomers & elastomer products 679 Other products of specific materials
	680 Manufacture for specific uses	680 Manufacture for specific uses 681 Precision instruments & other devices  681.1 Instruments for measuring time 682 Small forge work (Blacksmithing) 683 Hardware & household appliences  683.4 Small firearms 684 Furnishings & home workshops  684.1 Furniture 685 Leather, fur, related products 686 Printing & related activities  686.2 Printing 686.3 Bookbinding 686.4 Photocopying (Photoduplication) 687 Clothing 688 Other final products & packaging  688.6 Nonmotor land vehicles 688.7 Recreational equipment 688.8 Packaging technology 689
	690 Buildings	690 Buildings 691 Building materials 692 Auxiliary construction practices 693 Specific materials & purposes  693.8 Construction for specific purposes 694 Wood construction; Carpentry 695 Roof covering 696 Utilities 697 Heating, ventilation, air-conditioning  697.9 Ventilation and air conditioning 698 Detail finishing 699