Classification
320 - Political science
330 - Economics
36
900 - History & geography
300 - Social sciences
7
340 - Law
7
700 - The arts; fine & decorative arts
4
657 - Accounting
3
140 - Specific philosophical schools
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
630 - Agriculture & related technologies
2
000 - Computer science, information & general works
1
370 - Education
1
414 - Phonology & phonetics
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
800 - Literature & rhetoric
1