Classification
610 - Medicine & health
330 - Economics
6
000 - Computer science, information & general works
5
363 - Other social problems & services
5
580 - Plants (Botany)
5
140 - Specific philosophical schools
4
333 - Economics of land & energy
4
700 - The arts; fine & decorative arts
3
320 - Political science
2
540 - Chemistry & allied sciences
2
551 - Geology, hydrology & meteorology
2
630 - Agriculture & related technologies
2
900 - History & geography
2
300 - Social sciences
1
304 - Factors affecting social behavior
1
306 - Culture & institutions
1
361 - Social problems & social welfare in general
1
370 - Education
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
600 - Technology
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
1
658 - General management
1