Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
3
000 - Computer science, information & general works
2
320 - Political science
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
615 - Pharmacology & therapeutics
2
100 - Philosophy & psychology
1
170 - Ethics
1
200 - Religion
1
300 - Social sciences
1
301 - Sociology & anthropology
1
330 - Economics
1
500 - Natural sciences & mathematics
1
600 - Technology
1
900 - History & geography
1