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