Classification
320 - Political science
900 - History & geography
199
330 - Economics
145
300 - Social sciences
131
700 - The arts; fine & decorative arts
98
100 - Philosophy & psychology
94
140 - Specific philosophical schools
69
340 - Law
68
333 - Economics of land & energy
67
301 - Sociology & anthropology
54
200 - Religion
39
304 - Factors affecting social behavior
37
380 - Commerce, communications & transportation
36
363 - Other social problems & services
34
350 - Public administration & military science
32
600 - Technology
31
170 - Ethics
29
370 - Education
29
800 - Literature & rhetoric
25
297 - Islam, Babism & Bahai Faith
21
361 - Social problems & social welfare in general
21
400 - Language
18
576 - Genetics & evolution
18
551 - Geology, hydrology & meteorology
16
000 - Computer science, information & general works
15
360 - Social problems & services; associations
15
610 - Medicine & health
15
620 - Engineering & allied operations
14
630 - Agriculture & related technologies
14
720 - Architecture
13
581 - Specific topics in natural history
12
364 - Criminology
11
780 - Music
9
120 - Epistemology, causation & humankind
5
296 - Judaism
5
410 - Linguistics
5
770 - Photography, photographs & computer art
4
791 - Public performances
3
500 - Natural sciences & mathematics
2
580 - Plants (Botany)
2
398 - Folklore
1
520 - Astronomy & allied sciences
1
530 - Physics
1
657 - Accounting
1
920 - Biography, genealogy & insignia
1