Classification
610 - Medicine & health
415
330 - Economics
171
700 - The arts; fine & decorative arts
107
320 - Political science
102
600 - Technology
78
140 - Specific philosophical schools
72
340 - Law
57
000 - Computer science, information & general works
55
333 - Economics of land & energy
55
170 - Ethics
48
370 - Education
48
363 - Other social problems & services
45
380 - Commerce, communications & transportation
45
900 - History & geography
39
300 - Social sciences
38
100 - Philosophy & psychology
33
658 - General management
33
620 - Engineering & allied operations
31
361 - Social problems & social welfare in general
27
304 - Factors affecting social behavior
16
580 - Plants (Botany)
16
400 - Language
15
576 - Genetics & evolution
12
200 - Religion
11
500 - Natural sciences & mathematics
11
301 - Sociology & anthropology
10
650 - Management & auxiliary services
10
657 - Accounting
10
360 - Social problems & services; associations
8
551 - Geology, hydrology & meteorology
8
581 - Specific topics in natural history
7
615 - Pharmacology & therapeutics
6
720 - Architecture
6
362 - Social welfare problems & services
5
410 - Linguistics
5
350 - Public administration & military science
4
612 - Human physiology
4
540 - Chemistry & allied sciences
3
630 - Agriculture & related technologies
3
800 - Literature & rhetoric
3
120 - Epistemology, causation & humankind
2
364 - Criminology
2
530 - Physics
2
780 - Music
2
297 - Islam, Babism & Bahai Faith
1
368 - Insurance
1
414 - Phonology & phonetics
1
520 - Astronomy & allied sciences
1
550 - Earth sciences
1