Classification
330 - Economics
610 - Medicine & health
800 - Literature & rhetoric
700 - The arts; fine & decorative arts
12
333 - Economics of land & energy
11
140 - Specific philosophical schools
8
600 - Technology
8
363 - Other social problems & services
7
000 - Computer science, information & general works
6
380 - Commerce, communications & transportation
6
900 - History & geography
5
620 - Engineering & allied operations
4
304 - Factors affecting social behavior
3
370 - Education
3
100 - Philosophy & psychology
2
320 - Political science
2
400 - Language
2
551 - Geology, hydrology & meteorology
2
658 - General management
2
720 - Architecture
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
301 - Sociology & anthropology
1
340 - Law
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1