Classification
320 - Political science
340 - Law
720 - Architecture
700 - The arts; fine & decorative arts
7
140 - Specific philosophical schools
6
363 - Other social problems & services
4
620 - Engineering & allied operations
4
900 - History & geography
4
380 - Commerce, communications & transportation
3
500 - Natural sciences & mathematics
3
576 - Genetics & evolution
3
600 - Technology
3
330 - Economics
2
333 - Economics of land & energy
2
000 - Computer science, information & general works
1
200 - Religion
1
300 - Social sciences
1
350 - Public administration & military science
1
370 - Education
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
780 - Music
1