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