Classification
301 - Sociology & anthropology
16
300 - Social sciences
3
320 - Political science
2
581 - Specific topics in natural history
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
380 - Commerce, communications & transportation
1
600 - Technology
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1