Classification
100 - Philosophy & psychology
301 - Sociology & anthropology
370 - Education
300 - Social sciences
17
140 - Specific philosophical schools
8
320 - Political science
8
900 - History & geography
7
700 - The arts; fine & decorative arts
6
400 - Language
5
600 - Technology
4
610 - Medicine & health
4
170 - Ethics
3
330 - Economics
3
333 - Economics of land & energy
3
340 - Law
3
780 - Music
3
304 - Factors affecting social behavior
2
360 - Social problems & services; associations
2
361 - Social problems & social welfare in general
2
364 - Criminology
2
380 - Commerce, communications & transportation
2
410 - Linguistics
2
576 - Genetics & evolution
2
620 - Engineering & allied operations
2
000 - Computer science, information & general works
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
363 - Other social problems & services
1
398 - Folklore
1
414 - Phonology & phonetics
1
630 - Agriculture & related technologies
1
770 - Photography, photographs & computer art
1