Classification
320 - Political science
340 - Law
576 - Genetics & evolution
600 - Technology
5
900 - History & geography
140 - Specific philosophical schools
4
620 - Engineering & allied operations
4
363 - Other social problems & services
3
380 - Commerce, communications & transportation
3
500 - Natural sciences & mathematics
3
700 - The arts; fine & decorative arts
3
720 - Architecture
3
100 - Philosophy & psychology
2
120 - Epistemology, causation & humankind
1
300 - Social sciences
1
301 - Sociology & anthropology
1
330 - Economics
1
370 - Education
1