Classification
301 - Sociology & anthropology
900 - History & geography
300 - Social sciences
5
320 - Political science
4
200 - Religion
2
340 - Law
2
370 - Education
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
330 - Economics
1
333 - Economics of land & energy
1
350 - Public administration & military science
1
380 - Commerce, communications & transportation
1
400 - Language
1
600 - Technology
1
610 - Medicine & health
1
800 - Literature & rhetoric
1