Classification
320 - Political science
791 - Public performances
900 - History & geography
8
330 - Economics
4
800 - Literature & rhetoric
4
100 - Philosophy & psychology
3
363 - Other social problems & services
3
700 - The arts; fine & decorative arts
3
170 - Ethics
2
200 - Religion
2
300 - Social sciences
2
380 - Commerce, communications & transportation
2
400 - Language
2
576 - Genetics & evolution
2
600 - Technology
2
780 - Music
2
140 - Specific philosophical schools
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
333 - Economics of land & energy
1
340 - Law
1
370 - Education
1
410 - Linguistics
1
620 - Engineering & allied operations
1
658 - General management
1