Classification
320 - Political science
700 - The arts; fine & decorative arts
17
300 - Social sciences
4
370 - Education
4
900 - History & geography
4
330 - Economics
3
340 - Law
3
140 - Specific philosophical schools
2
200 - Religion
2
304 - Factors affecting social behavior
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
600 - Technology
2
000 - Computer science, information & general works
1
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
360 - Social problems & services; associations
1
380 - Commerce, communications & transportation
1
520 - Astronomy & allied sciences
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
610 - Medicine & health
1