Classification
400 - Language
304 - Factors affecting social behavior
4
370 - Education
4
610 - Medicine & health
3
100 - Philosophy & psychology
2
140 - Specific philosophical schools
2
301 - Sociology & anthropology
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
200 - Religion
1
300 - Social sciences
1
320 - Political science
1
330 - Economics
1
361 - Social problems & social welfare in general
1
576 - Genetics & evolution
1
800 - Literature & rhetoric
1