Classification
320 - Political science
900 - History & geography
20
330 - Economics
7
300 - Social sciences
5
100 - Philosophy & psychology
4
700 - The arts; fine & decorative arts
3
001 - Knowledge
1
140 - Specific philosophical schools
1
193 - Philosophy of Germany & Austria
1
200 - Religion
1
328 - The legislative process
1
338 - Production
1
370 - Education
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1
943 - Central Europe; Germany
1
973 - United States
1