Classification
000 - Computer science, information & general works
98
610 - Medicine & health
96
700 - The arts; fine & decorative arts
88
540 - Chemistry & allied sciences
57
333 - Economics of land & energy
55
580 - Plants (Botany)
53
140 - Specific philosophical schools
43
600 - Technology
43
363 - Other social problems & services
38
543 - Analytical chemistry
37
620 - Engineering & allied operations
31
664 - Food technology
26
615 - Pharmacology & therapeutics
23
660 - Chemical engineering
22
330 - Economics
20
380 - Commerce, communications & transportation
18
576 - Genetics & evolution
16
547 - Organic chemistry
15
900 - History & geography
15
414 - Phonology & phonetics
12
570 - Life sciences; biology
12
628 - Sanitary & municipal engineering
12
668 - Technology of other organic products
11
500 - Natural sciences & mathematics
10
304 - Factors affecting social behavior
9
551 - Geology, hydrology & meteorology
8
630 - Agriculture & related technologies
8
632 - Plant injuries, diseases & pests
8
612 - Human physiology
7
574 - [Unassigned]
6
616 - Diseases
6
661 - Industrial chemicals
6
530 - Physics
5
541 - Physical chemistry
5
572 - Biochemistry
4
581 - Specific topics in natural history
4
300 - Social sciences
3
662 - Explosives, fuels & related products
3
340 - Law
2
542 - Techniques, equipment & materials
2
553 - Economic geology
2
621 - Applied physics
2
631 - Techniques, equipment & materials
2
658 - General management
2
720 - Architecture
2
100 - Philosophy & psychology
1
301 - Sociology & anthropology
1
320 - Political science
1
334 - Cooperatives
1
338 - Production
1
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