Classification
340 - Law
363 - Other social problems & services
551 - Geology, hydrology & meteorology
320 - Political science
5
700 - The arts; fine & decorative arts
4
333 - Economics of land & energy
2
330 - Economics
1
380 - Commerce, communications & transportation
1
581 - Specific topics in natural history
1
600 - Technology
1
610 - Medicine & health
1