Classification
320 - Political science
330 - Economics
363 - Other social problems & services
380 - Commerce, communications & transportation
600 - Technology
333 - Economics of land & energy
14
700 - The arts; fine & decorative arts
9
551 - Geology, hydrology & meteorology
7
370 - Education
6
900 - History & geography
6
000 - Computer science, information & general works
4
140 - Specific philosophical schools
4
300 - Social sciences
4
610 - Medicine & health
4
620 - Engineering & allied operations
4
720 - Architecture
4
576 - Genetics & evolution
3
657 - Accounting
3
658 - General management
3
340 - Law
2
580 - Plants (Botany)
2
630 - Agriculture & related technologies
2
200 - Religion
1
304 - Factors affecting social behavior
1
336 - Public finance
1
361 - Social problems & social welfare in general
1
414 - Phonology & phonetics
1
581 - Specific topics in natural history
1
650 - Management & auxiliary services
1
800 - Literature & rhetoric
1