Classification
301 - Sociology & anthropology
5
581 - Specific topics in natural history
363 - Other social problems & services
3
140 - Specific philosophical schools
2
200 - Religion
2
320 - Political science
2
330 - Economics
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
300 - Social sciences
1
333 - Economics of land & energy
1
340 - Law
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
610 - Medicine & health
1