Classification
000 - Computer science, information & general works
5
140 - Specific philosophical schools
3
304 - Factors affecting social behavior
1
320 - Political science
3
330 - Economics
333 - Economics of land & energy
4
363 - Other social problems & services
370 - Education
2
380 - Commerce, communications & transportation
414 - Phonology & phonetics
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
600 - Technology
1
610 - Medicine & health
2
700 - The arts; fine & decorative arts
4
900 - History & geography
2