Classification
100 - Philosophy & psychology
600 - Technology
900 - History & geography
363 - Other social problems & services
12
300 - Social sciences
10
320 - Political science
9
340 - Law
6
370 - Education
6
620 - Engineering & allied operations
6
000 - Computer science, information & general works
4
120 - Epistemology, causation & humankind
4
170 - Ethics
4
330 - Economics
4
700 - The arts; fine & decorative arts
4
200 - Religion
3
301 - Sociology & anthropology
2
333 - Economics of land & energy
2
400 - Language
2
720 - Architecture
2
140 - Specific philosophical schools
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
530 - Physics
1
576 - Genetics & evolution
1
610 - Medicine & health
1