Classification
320 - Political science
380 - Commerce, communications & transportation
576 - Genetics & evolution
330 - Economics
13
363 - Other social problems & services
11
333 - Economics of land & energy
10
700 - The arts; fine & decorative arts
10
600 - Technology
9
000 - Computer science, information & general works
8
140 - Specific philosophical schools
8
900 - History & geography
6
340 - Law
5
500 - Natural sciences & mathematics
4
620 - Engineering & allied operations
4
304 - Factors affecting social behavior
3
551 - Geology, hydrology & meteorology
3
610 - Medicine & health
3
658 - General management
3
720 - Architecture
3
370 - Education
2
410 - Linguistics
2
800 - Literature & rhetoric
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
414 - Phonology & phonetics
1
530 - Physics
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1
657 - Accounting
1
791 - Public performances
1