Classification
576 - Genetics & evolution
610 - Medicine & health
700 - The arts; fine & decorative arts
4
000 - Computer science, information & general works
3
600 - Technology
3
658 - General management
3
320 - Political science
2
330 - Economics
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
630 - Agriculture & related technologies
2
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
620 - Engineering & allied operations
1