Classification
140 - Specific philosophical schools
330 - Economics
8
700 - The arts; fine & decorative arts
333 - Economics of land & energy
5
600 - Technology
5
320 - Political science
4
000 - Computer science, information & general works
3
363 - Other social problems & services
3
551 - Geology, hydrology & meteorology
3
380 - Commerce, communications & transportation
2
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
370 - Education
1
400 - Language
1
500 - Natural sciences & mathematics
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
720 - Architecture
1
900 - History & geography
1