Classification
000 - Computer science, information & general works
3
330 - Economics
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
320 - Political science
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
658 - General management
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1