Classification
370 - Education
330 - Economics
17
610 - Medicine & health
8
304 - Factors affecting social behavior
7
320 - Political science
5
140 - Specific philosophical schools
3
363 - Other social problems & services
3
700 - The arts; fine & decorative arts
3
900 - History & geography
3
100 - Philosophy & psychology
2
333 - Economics of land & energy
2
361 - Social problems & social welfare in general
2
380 - Commerce, communications & transportation
2
000 - Computer science, information & general works
1
200 - Religion
1
300 - Social sciences
1
340 - Law
1
350 - Public administration & military science
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
600 - Technology
1
612 - Human physiology
1
620 - Engineering & allied operations
1
658 - General management
1
780 - Music
1