Classification
301 - Sociology & anthropology
330 - Economics
370 - Education
900 - History & geography
140 - Specific philosophical schools
3
300 - Social sciences
3
340 - Law
3
100 - Philosophy & psychology
2
170 - Ethics
2
320 - Political science
2
600 - Technology
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
576 - Genetics & evolution
1
610 - Medicine & health
1
720 - Architecture
1
800 - Literature & rhetoric
1