Classification
320 - Political science
620 - Engineering & allied operations
600 - Technology
12
630 - Agriculture & related technologies
8
140 - Specific philosophical schools
4
300 - Social sciences
4
363 - Other social problems & services
4
330 - Economics
3
333 - Economics of land & energy
3
700 - The arts; fine & decorative arts
3
100 - Philosophy & psychology
2
340 - Law
2
000 - Computer science, information & general works
1
170 - Ethics
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
551 - Geology, hydrology & meteorology
1
720 - Architecture
1