Classification
370 - Education
34
320 - Political science
16
330 - Economics
12
333 - Economics of land & energy
12
100 - Philosophy & psychology
11
300 - Social sciences
8
700 - The arts; fine & decorative arts
7
900 - History & geography
6
380 - Commerce, communications & transportation
5
400 - Language
5
600 - Technology
5
304 - Factors affecting social behavior
3
410 - Linguistics
3
414 - Phonology & phonetics
3
000 - Computer science, information & general works
2
301 - Sociology & anthropology
2
363 - Other social problems & services
2
610 - Medicine & health
2
140 - Specific philosophical schools
1
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
340 - Law
1
350 - Public administration & military science
1
364 - Criminology
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1
658 - General management
1