Classification
363 - Other social problems & services
370 - Education
700 - The arts; fine & decorative arts
900 - History & geography
600 - Technology
14
333 - Economics of land & energy
13
620 - Engineering & allied operations
13
000 - Computer science, information & general works
11
330 - Economics
11
380 - Commerce, communications & transportation
10
320 - Political science
7
720 - Architecture
7
610 - Medicine & health
4
140 - Specific philosophical schools
3
340 - Law
3
400 - Language
3
551 - Geology, hydrology & meteorology
3
414 - Phonology & phonetics
2
500 - Natural sciences & mathematics
2
580 - Plants (Botany)
2
581 - Specific topics in natural history
2
658 - General management
2
100 - Philosophy & psychology
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
800 - Literature & rhetoric
1