Classification
200 - Religion
140 - Specific philosophical schools
6
100 - Philosophy & psychology
5
363 - Other social problems & services
5
581 - Specific topics in natural history
5
700 - The arts; fine & decorative arts
5
000 - Computer science, information & general works
4
170 - Ethics
3
610 - Medicine & health
3
900 - History & geography
3
120 - Epistemology, causation & humankind
2
330 - Economics
2
370 - Education
2
500 - Natural sciences & mathematics
2
530 - Physics
2
551 - Geology, hydrology & meteorology
2
160 - Logic
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
320 - Political science
1
333 - Economics of land & energy
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
580 - Plants (Botany)
1
600 - Technology
1
630 - Agriculture & related technologies
1
920 - Biography, genealogy & insignia
1