Classification
320 - Political science
900 - History & geography
300 - Social sciences
3
100 - Philosophy & psychology
2
330 - Economics
2
340 - Law
2
576 - Genetics & evolution
2
610 - Medicine & health
2
630 - Agriculture & related technologies
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
170 - Ethics
1
301 - Sociology & anthropology
1
305 - Social groups
1
338 - Production
1
600 - Technology
1
759 - Historical, geographic & persons treatment
1
800 - Literature & rhetoric
1
940 - History of Europe
1