Classification
320 - Political science
242
100 - Philosophy & psychology
198
900 - History & geography
183
300 - Social sciences
116
700 - The arts; fine & decorative arts
102
330 - Economics
82
370 - Education
74
800 - Literature & rhetoric
62
140 - Specific philosophical schools
61
791 - Public performances
55
720 - Architecture
36
301 - Sociology & anthropology
32
600 - Technology
28
780 - Music
28
380 - Commerce, communications & transportation
27
200 - Religion
24
340 - Law
24
170 - Ethics
22
400 - Language
21
000 - Computer science, information & general works
20
120 - Epistemology, causation & humankind
20
333 - Economics of land & energy
18
410 - Linguistics
17
363 - Other social problems & services
16
304 - Factors affecting social behavior
12
500 - Natural sciences & mathematics
12
610 - Medicine & health
11
530 - Physics
10
576 - Genetics & evolution
10
581 - Specific topics in natural history
10
620 - Engineering & allied operations
8
770 - Photography, photographs & computer art
6
364 - Criminology
5
551 - Geology, hydrology & meteorology
5
297 - Islam, Babism & Bahai Faith
3
414 - Phonology & phonetics
3
657 - Accounting
3
350 - Public administration & military science
2
160 - Logic
1
296 - Judaism
1
361 - Social problems & social welfare in general
1
398 - Folklore
1
520 - Astronomy & allied sciences
1
612 - Human physiology
1
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
1
658 - General management
1