Classification
320 - Political science
370 - Education
900 - History & geography
300 - Social sciences
9
100 - Philosophy & psychology
8
200 - Religion
6
380 - Commerce, communications & transportation
5
340 - Law
4
170 - Ethics
3
330 - Economics
3
363 - Other social problems & services
3
600 - Technology
3
000 - Computer science, information & general works
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
780 - Music
2
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
1
296 - Judaism
1
301 - Sociology & anthropology
1
333 - Economics of land & energy
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
410 - Linguistics
1
576 - Genetics & evolution
1
658 - General management
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1