Classification
320 - Political science
17
900 - History & geography
17
305 - Social groups
5
330 - Economics
5
331 - Labor economics
4
510 - Mathematics
3
005 - Computer programming, programs & data
2
300 - Social sciences
2
303 - Social processes
2
500 - Natural sciences & mathematics
2
620 - Engineering & allied operations
2
943 - Central Europe; Germany
2
002 - The book
1
006 - Special computer methods
1
100 - Philosophy & psychology
1
170 - Ethics
1
229 - Apocrypha & pseudepigrapha
1
292 - Greek & Roman religion
1
322 - Relation of state to organized groups
1
340 - Law
1
378 - Higher education
1
384 - Communications; telecommunication
1
658 - General management
1
745 - Decorative arts
1
780 - Music
1
831 - German poetry
1
940 - History of Europe
1
947 - Eastern Europe; Russia
1