Classification
330 - Economics
380 - Commerce, communications & transportation
610 - Medicine & health
720 - Architecture
363 - Other social problems & services
3
000 - Computer science, information & general works
2
333 - Economics of land & energy
2
658 - General management
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
320 - Political science
1
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
1
900 - History & geography
1