Classification
320 - Political science
340 - Law
700 - The arts; fine & decorative arts
900 - History & geography
140 - Specific philosophical schools
8
330 - Economics
8
300 - Social sciences
6
600 - Technology
6
363 - Other social problems & services
5
620 - Engineering & allied operations
5
100 - Philosophy & psychology
4
380 - Commerce, communications & transportation
4
333 - Economics of land & energy
3
370 - Education
3
500 - Natural sciences & mathematics
3
576 - Genetics & evolution
3
720 - Architecture
3
301 - Sociology & anthropology
2
400 - Language
2
658 - General management
2
000 - Computer science, information & general works
1
170 - Ethics
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
361 - Social problems & social welfare in general
1
410 - Linguistics
1
770 - Photography, photographs & computer art
1
780 - Music
1
800 - Literature & rhetoric
1