Classification
140 - Specific philosophical schools
610 - Medicine & health
27
700 - The arts; fine & decorative arts
17
380 - Commerce, communications & transportation
9
333 - Economics of land & energy
8
363 - Other social problems & services
8
000 - Computer science, information & general works
7
600 - Technology
6
370 - Education
5
612 - Human physiology
5
304 - Factors affecting social behavior
4
330 - Economics
4
800 - Literature & rhetoric
4
400 - Language
3
576 - Genetics & evolution
3
320 - Political science
2
340 - Law
2
361 - Social problems & social welfare in general
2
410 - Linguistics
2
615 - Pharmacology & therapeutics
2
630 - Agriculture & related technologies
2
658 - General management
2
100 - Philosophy & psychology
1
350 - Public administration & military science
1
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
620 - Engineering & allied operations
1
900 - History & geography
1