Classification
300 - Social sciences
4
340 - Law
4
363 - Other social problems & services
370 - Education
600 - Technology
4
900 - History & geography
100 - Philosophy & psychology
3
200 - Religion
3
320 - Political science
3
000 - Computer science, information & general works
2
120 - Epistemology, causation & humankind
2
170 - Ethics
2
620 - Engineering & allied operations
2
301 - Sociology & anthropology
1
330 - Economics
1
380 - Commerce, communications & transportation
1
400 - Language
1
720 - Architecture
1