Classification
340 - Law
330 - Economics
76
320 - Political science
67
700 - The arts; fine & decorative arts
23
333 - Economics of land & energy
21
600 - Technology
16
000 - Computer science, information & general works
13
900 - History & geography
13
380 - Commerce, communications & transportation
11
620 - Engineering & allied operations
9
363 - Other social problems & services
8
610 - Medicine & health
8
140 - Specific philosophical schools
7
576 - Genetics & evolution
7
100 - Philosophy & psychology
6
300 - Social sciences
6
500 - Natural sciences & mathematics
6
630 - Agriculture & related technologies
5
170 - Ethics
4
304 - Factors affecting social behavior
4
370 - Education
4
530 - Physics
4
551 - Geology, hydrology & meteorology
4
200 - Religion
3
301 - Sociology & anthropology
3
410 - Linguistics
3
580 - Plants (Botany)
3
400 - Language
2
800 - Literature & rhetoric
2
297 - Islam, Babism & Bahai Faith
1
344 - Labor, social, education & cultural law
1
350 - Public administration & military science
1
364 - Criminology
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
581 - Specific topics in natural history
1
612 - Human physiology
1
658 - General management
1