Classification
363 - Other social problems & services
551 - Geology, hydrology & meteorology
720 - Architecture
333 - Economics of land & energy
6
700 - The arts; fine & decorative arts
6
320 - Political science
5
380 - Commerce, communications & transportation
5
600 - Technology
4
900 - History & geography
4
330 - Economics
3
370 - Education
3
610 - Medicine & health
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
340 - Law
1
620 - Engineering & allied operations
1