Classification
100 - Philosophy & psychology
13
900 - History & geography
5
300 - Social sciences
3
333 - Economics of land & energy
3
370 - Education
3
140 - Specific philosophical schools
2
330 - Economics
2
400 - Language
2
410 - Linguistics
2
610 - Medicine & health
2
800 - Literature & rhetoric
2
170 - Ethics
1
200 - Religion
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
320 - Political science
1
340 - Law
1
350 - Public administration & military science
1
380 - Commerce, communications & transportation
1
576 - Genetics & evolution
1
700 - The arts; fine & decorative arts
1