Classification
610 - Medicine & health
35
330 - Economics
7
363 - Other social problems & services
7
380 - Commerce, communications & transportation
7
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
170 - Ethics
3
361 - Social problems & social welfare in general
3
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
362 - Social welfare problems & services
2
600 - Technology
2
261 - Social theology
1
340 - Law
1
612 - Human physiology
1