Classification
320 - Political science
330 - Economics
576 - Genetics & evolution
900 - History & geography
300 - Social sciences
438
340 - Law
186
700 - The arts; fine & decorative arts
18
100 - Philosophy & psychology
10
200 - Religion
9
140 - Specific philosophical schools
5
630 - Agriculture & related technologies
4
301 - Sociology & anthropology
3
600 - Technology
3
800 - Literature & rhetoric
3
304 - Factors affecting social behavior
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
370 - Education
2
581 - Specific topics in natural history
2
343 - Military, tax, trade & industrial law
1
350 - Public administration & military science
1
380 - Commerce, communications & transportation
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
780 - Music
1
791 - Public performances
1
920 - Biography, genealogy & insignia
1
973 - United States
1