Classification
320 - Political science
330 - Economics
333 - Economics of land & energy
5
380 - Commerce, communications & transportation
600 - Technology
610 - Medicine & health
700 - The arts; fine & decorative arts
363 - Other social problems & services
4
551 - Geology, hydrology & meteorology
4
370 - Education
3
900 - History & geography
3
000 - Computer science, information & general works
2
720 - Architecture
2
414 - Phonology & phonetics
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
658 - General management
1