Classification
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384 - Communications; telecommunication
8
385 - Railroad transportation
1
387 - Water, air & space transportation
1
388 - Transportation; ground transportation
9
398 - Folklore
1
500 - Natural sciences & mathematics
3
530 - Physics
1
551 - Geology, hydrology & meteorology
1
570 - Life sciences; biology
2
577 - Ecology
2
600 - Technology
9
608 - Inventions & patents
1
610 - Medicine & health
4
615 - Pharmacology & therapeutics
1
621 - Applied physics
1
622 - Mining & related operations
3
628 - Sanitary & municipal engineering
2
639 - Hunting, fishing & conservation
2
640 - Home & family management
1
650 - Management & auxiliary services
7
658 - General management
118
706 - Organizations & management
1
720 - Architecture
1
780 - Music
4
910 - Geography & travel
3
940 - History of Europe
1
950 - History of Asia; Far East
1
953 - Arabian Peninsula & adjacent areas
1