Classification
320 - Political science
330 - Economics
900 - History & geography
69
340 - Law
65
800 - Literature & rhetoric
41
300 - Social sciences
29
700 - The arts; fine & decorative arts
12
576 - Genetics & evolution
11
370 - Education
7
630 - Agriculture & related technologies
7
200 - Religion
6
140 - Specific philosophical schools
5
170 - Ethics
3
380 - Commerce, communications & transportation
2
610 - Medicine & health
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
304 - Factors affecting social behavior
1
580 - Plants (Botany)
1
600 - Technology
1