Classification
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
610 - Medicine & health
16
140 - Specific philosophical schools
12
000 - Computer science, information & general works
9
333 - Economics of land & energy
9
600 - Technology
9
363 - Other social problems & services
8
320 - Political science
5
370 - Education
5
330 - Economics
4
304 - Factors affecting social behavior
3
361 - Social problems & social welfare in general
3
400 - Language
3
581 - Specific topics in natural history
3
800 - Literature & rhetoric
3
200 - Religion
2
576 - Genetics & evolution
2
620 - Engineering & allied operations
2
658 - General management
2
900 - History & geography
2
301 - Sociology & anthropology
1
340 - Law
1
414 - Phonology & phonetics
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
612 - Human physiology
1
657 - Accounting
1