Classification
363 - Other social problems & services
333 - Economics of land & energy
86
330 - Economics
85
600 - Technology
85
700 - The arts; fine & decorative arts
81
900 - History & geography
69
000 - Computer science, information & general works
62
320 - Political science
60
140 - Specific philosophical schools
59
620 - Engineering & allied operations
47
380 - Commerce, communications & transportation
46
610 - Medicine & health
45
370 - Education
38
551 - Geology, hydrology & meteorology
33
100 - Philosophy & psychology
32
576 - Genetics & evolution
30
581 - Specific topics in natural history
22
300 - Social sciences
21
500 - Natural sciences & mathematics
20
658 - General management
20
720 - Architecture
20
800 - Literature & rhetoric
20
580 - Plants (Botany)
14
340 - Law
13
200 - Religion
11
304 - Factors affecting social behavior
11
170 - Ethics
9
410 - Linguistics
8
630 - Agriculture & related technologies
8
301 - Sociology & anthropology
6
540 - Chemistry & allied sciences
5
791 - Public performances
5
530 - Physics
4
297 - Islam, Babism & Bahai Faith
3
361 - Social problems & social welfare in general
3
364 - Criminology
3
400 - Language
3
414 - Phonology & phonetics
3
520 - Astronomy & allied sciences
2
780 - Music
2
160 - Logic
1
306 - Culture & institutions
1
327 - International relations
1
331 - Labor economics
1
590 - Animals (Zoology)
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
650 - Management & auxiliary services
1
657 - Accounting
1