Classification
100 - Philosophy & psychology
340 - Law
370 - Education
140 - Specific philosophical schools
5
320 - Political science
4
900 - History & geography
4
170 - Ethics
3
300 - Social sciences
3
330 - Economics
3
333 - Economics of land & energy
3
301 - Sociology & anthropology
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
380 - Commerce, communications & transportation
1
400 - Language
1
576 - Genetics & evolution
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
770 - Photography, photographs & computer art
1