Classification
320 - Political science
800 - Literature & rhetoric
147
900 - History & geography
94
700 - The arts; fine & decorative arts
39
100 - Philosophy & psychology
25
300 - Social sciences
25
140 - Specific philosophical schools
23
330 - Economics
22
400 - Language
19
200 - Religion
17
333 - Economics of land & energy
17
410 - Linguistics
15
000 - Computer science, information & general works
14
363 - Other social problems & services
14
170 - Ethics
12
380 - Commerce, communications & transportation
12
600 - Technology
12
340 - Law
10
297 - Islam, Babism & Bahai Faith
9
370 - Education
7
610 - Medicine & health
7
304 - Factors affecting social behavior
6
301 - Sociology & anthropology
5
576 - Genetics & evolution
5
551 - Geology, hydrology & meteorology
4
720 - Architecture
4
780 - Music
4
581 - Specific topics in natural history
3
658 - General management
3
350 - Public administration & military science
2
361 - Social problems & social welfare in general
2
500 - Natural sciences & mathematics
2
580 - Plants (Botany)
2
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
120 - Epistemology, causation & humankind
1
336 - Public finance
1
398 - Folklore
1
414 - Phonology & phonetics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
657 - Accounting
1
791 - Public performances
1