Classification
100 - Philosophy & psychology
200 - Religion
300 - Social sciences
301 - Sociology & anthropology
900 - History & geography
3
320 - Political science
2
330 - Economics
2
140 - Specific philosophical schools
1
170 - Ethics
1
333 - Economics of land & energy
1
340 - Law
1
530 - Physics
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
780 - Music
1
800 - Literature & rhetoric
1