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