Classification
600 - Technology
700 - The arts; fine & decorative arts
320 - Political science
2
330 - Economics
2
370 - Education
2
576 - Genetics & evolution
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
200 - Religion
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
630 - Agriculture & related technologies
1
900 - History & geography
1