Classification
000 - Computer science, information & general works
340 - Law
600 - Technology
363 - Other social problems & services
3
700 - The arts; fine & decorative arts
3
140 - Specific philosophical schools
2
320 - Political science
2
610 - Medicine & health
2
330 - Economics
1
333 - Economics of land & energy
1
380 - Commerce, communications & transportation
1
551 - Geology, hydrology & meteorology
1