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