Classification
610 - Medicine & health
46
330 - Economics
4
700 - The arts; fine & decorative arts
4
362 - Social welfare problems & services
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
361 - Social problems & social welfare in general
2
370 - Education
2
570 - Life sciences; biology
2
170 - Ethics
1
301 - Sociology & anthropology
1
306 - Culture & institutions
1
333 - Economics of land & energy
1
340 - Law
1
360 - Social problems & services; associations
1
380 - Commerce, communications & transportation
1
600 - Technology
1
900 - History & geography
1