Classification
330 - Economics
23
364 - Criminology
5
610 - Medicine & health
5
700 - The arts; fine & decorative arts
5
140 - Specific philosophical schools
4
300 - Social sciences
4
320 - Political science
4
340 - Law
4
170 - Ethics
3
333 - Economics of land & energy
3
361 - Social problems & social welfare in general
3
100 - Philosophy & psychology
2
800 - Literature & rhetoric
2
900 - History & geography
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
363 - Other social problems & services
1
370 - Education
1
400 - Language
1
500 - Natural sciences & mathematics
1
576 - Genetics & evolution
1
600 - Technology
1
620 - Engineering & allied operations
1
658 - General management
1