Classification
320 - Political science
340 - Law
330 - Economics
6
900 - History & geography
4
333 - Economics of land & energy
3
380 - Commerce, communications & transportation
3
363 - Other social problems & services
2
600 - Technology
2
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
301 - Sociology & anthropology
1
370 - Education
1
400 - Language
1
576 - Genetics & evolution
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
657 - Accounting
1
700 - The arts; fine & decorative arts
1