Classification
100 - Philosophy & psychology
340 - Law
320 - Political science
166
900 - History & geography
121
330 - Economics
75
300 - Social sciences
68
170 - Ethics
54
200 - Religion
51
140 - Specific philosophical schools
37
610 - Medicine & health
34
700 - The arts; fine & decorative arts
34
370 - Education
17
000 - Computer science, information & general works
12
333 - Economics of land & energy
12
301 - Sociology & anthropology
10
576 - Genetics & evolution
10
600 - Technology
10
363 - Other social problems & services
9
364 - Criminology
9
120 - Epistemology, causation & humankind
8
400 - Language
8
297 - Islam, Babism & Bahai Faith
7
530 - Physics
7
620 - Engineering & allied operations
7
800 - Literature & rhetoric
7
380 - Commerce, communications & transportation
6
500 - Natural sciences & mathematics
6
361 - Social problems & social welfare in general
5
581 - Specific topics in natural history
5
304 - Factors affecting social behavior
4
410 - Linguistics
4
780 - Music
4
336 - Public finance
3
551 - Geology, hydrology & meteorology
2
658 - General management
2
770 - Photography, photographs & computer art
2
160 - Logic
1
296 - Judaism
1
303 - Social processes
1
350 - Public administration & military science
1
360 - Social problems & services; associations
1
580 - Plants (Botany)
1
630 - Agriculture & related technologies
1
720 - Architecture
1