DeweyDecimalSystem|Technology

:600 Technology (Applied sciences)

:601 Philosophy & theory

:602 Miscellany

:603 Dictionaries & encyclopedias

:604 Special topics

:605 Serial publications

:606 Organizations

:607 Education, research, related topics

:608 Invention & patents

:609 Historical, areas, persons treatment

:610 Medical sciences Medicine

:611 Human anatomy, Human cytology,Human histology

:612 Human physiology

:613 Promotion of health

:614 Incidence & prevention of disease

:615 Pharmacology & theraputics

:616 Diseases

:617 Surgery & related medical specialities

:618 Gynecology & other medical specialities

:619 Experimental medicine

:620 Engineering & allied operations

:621 Applied physics

:622 Mining & related operations

:623 Military engineering & nautical engineering

:624 Civil engineering

:625 Engineering of railroads, roads

:627 Hydraulic engineering

:628 Sanitary engineering & municipal engineering

:629 Other branches of engineering

:630 Agriculture

:631 Techniques, equipment, materials

:632 Plant injuries, Plant diseases, Plant pests

:633 Field & plantation crops

:634 Orchards, fruits, forestry

:635 Garden crops (Horticulture)

:636 Animal husbandry

:637 Processing dairy & related products

:638 Insect culture

:639 Hunting, fishing, conservation

:640 Home economics & family living

:641 Food & drink

:642 Meals & table service

:643 Housing & household equipment

:644 Household utilities

:645 Household furnishings

:646 Sewing, clothing, personal living

:647 Management of public households

:648 Housekeeping

:649 Child rearing & home care of sick

:650 Management & auxiliary services

:651 Office services

:652 Processes of written communication

:653 Shorthand

:657 Accounting

:658 General management

:659 Advertising & public relations

:660 Chemical engineering

:661 Industrial chemicals technology

:662 Explosives, fuels technology

:663 Beverage technology

:664 Food technology

:665 Industrial oils, fats, waxes, gases

:666 Ceramic & allied technologies

:667 Cleaning, color, related technologies

:668 Technology of other organic products

:669 Metallurgy

:670 Manufacturing

:671 Metalworking & metal products

:672 Iron, steel, other iron alloys

:673 Nonferrous metals

:674 Lumber processing, wood products, cork

:675 Leather processing & fur processing

:676 Pulp & paper technology

:677 Textiles

:678 Elastomers & elastomer products

:679 Other products of specific materials

:680 Manufacture for specific uses

:681 Precision instruments & other devices

:682 Small forge work (Blacksmithing)

:683 Hardware & household appliances

:684 Furnishings & home workshops

:685 Leather, fur, related products

:686 Printing & related activities

:687 Clothing

:688 Other final products & packaging

:690 Buildings

:691 Building materials

:692 Auxiliary construction practices

:693 Specific materials & purposes

:694 Wood construction Carpentry

:695 Roof covering

:696 Utilities

:697 Heating, ventilating, air-conditioning

:698 Detail finishing