Classification
900 - History & geography
320 - Political science
18
943 - Central Europe; Germany
10
330 - Economics
9
340 - Law
6
200 - Religion
4
576 - Genetics & evolution
3
300 - Social sciences
2
322 - Relation of state to organized groups
2
700 - The arts; fine & decorative arts
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
282 - Roman Catholic Church
1
327 - International relations
1
328 - The legislative process
1
940 - History of Europe
1