Classification
320 - Political science
333 - Economics of land & energy
610 - Medicine & health
3
300 - Social sciences
2
330 - Economics
2
340 - Law
2
581 - Specific topics in natural history
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
363 - Other social problems & services
1
370 - Education
1
900 - History & geography
1