Classification
320 - Political science
330 - Economics
7
300 - Social sciences
5
900 - History & geography
5
100 - Philosophy & psychology
4
700 - The arts; fine & decorative arts
3
200 - Religion
2
340 - Law
2
600 - Technology
2
140 - Specific philosophical schools
1
170 - Ethics
1
301 - Sociology & anthropology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
800 - Literature & rhetoric
1