Classification
330 - Economics
700 - The arts; fine & decorative arts
320 - Political science
89
340 - Law
55
900 - History & geography
24
300 - Social sciences
14
100 - Philosophy & psychology
9
600 - Technology
8
363 - Other social problems & services
6
333 - Economics of land & energy
5
380 - Commerce, communications & transportation
4
610 - Medicine & health
4
658 - General management
4
170 - Ethics
3
361 - Social problems & social welfare in general
3
370 - Education
3
005 - Computer programming, programs & data
2
576 - Genetics & evolution
2
000 - Computer science, information & general works
1
120 - Epistemology, causation & humankind
1
200 - Religion
1
336 - Public finance
1
360 - Social problems & services; associations
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
1
657 - Accounting
1