Classification
140 - Specific philosophical schools
200 - Religion
320 - Political science
3
330 - Economics
3
610 - Medicine & health
3
900 - History & geography
3
100 - Philosophy & psychology
2
333 - Economics of land & energy
2
370 - Education
2
700 - The arts; fine & decorative arts
2
800 - Literature & rhetoric
2
000 - Computer science, information & general works
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
340 - Law
1
360 - Social problems & services; associations
1
363 - Other social problems & services
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
530 - Physics
1
581 - Specific topics in natural history
1
600 - Technology
1