Classification
700 - The arts; fine & decorative arts
330 - Economics
6
333 - Economics of land & energy
4
600 - Technology
4
610 - Medicine & health
4
000 - Computer science, information & general works
3
140 - Specific philosophical schools
2
380 - Commerce, communications & transportation
2
620 - Engineering & allied operations
2
900 - History & geography
2
297 - Islam, Babism & Bahai Faith
1
320 - Political science
1
336 - Public finance
1
363 - Other social problems & services
1
551 - Geology, hydrology & meteorology
1
720 - Architecture
1