Classification
340 - Law
700 - The arts; fine & decorative arts
8
333 - Economics of land & energy
6
900 - History & geography
6
600 - Technology
5
320 - Political science
4
414 - Phonology & phonetics
4
576 - Genetics & evolution
4
620 - Engineering & allied operations
4
000 - Computer science, information & general works
3
330 - Economics
3
363 - Other social problems & services
3
530 - Physics
3
300 - Social sciences
2
551 - Geology, hydrology & meteorology
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
1
301 - Sociology & anthropology
1
370 - Education
1
581 - Specific topics in natural history
1