Classification
320 - Political science
330 - Economics
576 - Genetics & evolution
600 - Technology
333 - Economics of land & energy
6
363 - Other social problems & services
6
380 - Commerce, communications & transportation
6
700 - The arts; fine & decorative arts
5
000 - Computer science, information & general works
3
140 - Specific philosophical schools
3
370 - Education
3
610 - Medicine & health
3
658 - General management
3
900 - History & geography
3
100 - Philosophy & psychology
2
300 - Social sciences
2
340 - Law
2
620 - Engineering & allied operations
2
200 - Religion
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
350 - Public administration & military science
1
551 - Geology, hydrology & meteorology
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1
657 - Accounting
1
791 - Public performances
1
800 - Literature & rhetoric
1