Classification
100 - Philosophy & psychology
320 - Political science
330 - Economics
340 - Law
300 - Social sciences
8
170 - Ethics
7
900 - History & geography
7
370 - Education
4
140 - Specific philosophical schools
3
301 - Sociology & anthropology
3
333 - Economics of land & energy
3
600 - Technology
3
700 - The arts; fine & decorative arts
3
400 - Language
2
620 - Engineering & allied operations
2
658 - General management
2
304 - Factors affecting social behavior
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
770 - Photography, photographs & computer art
1
780 - Music
1