First Summary (The Ten Main Classes) | |||||||||||||||||||||
| 000 : Computers, information, & general works | |||||||||||||||||||||
| 100 : Philosophy & psychology | |||||||||||||||||||||
| 200 : Religion | |||||||||||||||||||||
| 300 : Social sciences | |||||||||||||||||||||
| 400 : Language | |||||||||||||||||||||
| 500 : Science | |||||||||||||||||||||
| 600 : Technology | |||||||||||||||||||||
| 700 : Arts & recreation | |||||||||||||||||||||
| 800 : Literature | |||||||||||||||||||||
| 900 : History & geography | |||||||||||||||||||||
Second Summary (The Hundred Divisions)
600 : Technology
| 610 : Medicine & health
| 620 : Engineering
| 630 : Agriculture
| 640 : Home & family management
| 650 : Management & public relations
| 660 : Chemical engineering
| 670 : Manufacturing
| 680 : Manufacture for specific uses
| 690 : Building & construction
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| 600 : Technology | 601 : Philosophy & theory | 602 : Miscellany | 603 : Dictionaries & encyclopedias | 604 : Special topics | 605 : Serial publications | 606 : Organizations | 607 : Education, research & related topics | 608 : Inventions & patents | 609 : Historical, geographic & persons treatment |