Classification
330 - Economics
7
363 - Other social problems & services
380 - Commerce, communications & transportation
333 - Economics of land & energy
6
320 - Political science
5
700 - The arts; fine & decorative arts
5
000 - Computer science, information & general works
4
600 - Technology
4
610 - Medicine & health
4
370 - Education
3
720 - Architecture
3
140 - Specific philosophical schools
2
551 - Geology, hydrology & meteorology
2
658 - General management
2
900 - History & geography
2
340 - Law
1
350 - Public administration & military science
1
414 - Phonology & phonetics
1
530 - Physics
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
657 - Accounting
1