Classification
140 - Specific philosophical schools
320 - Political science
363 - Other social problems & services
700 - The arts; fine & decorative arts
330 - Economics
29
333 - Economics of land & energy
26
000 - Computer science, information & general works
20
610 - Medicine & health
15
380 - Commerce, communications & transportation
14
581 - Specific topics in natural history
14
600 - Technology
14
900 - History & geography
12
551 - Geology, hydrology & meteorology
11
340 - Law
10
720 - Architecture
10
300 - Social sciences
8
620 - Engineering & allied operations
7
304 - Factors affecting social behavior
6
576 - Genetics & evolution
6
370 - Education
5
100 - Philosophy & psychology
4
200 - Religion
4
500 - Natural sciences & mathematics
4
580 - Plants (Botany)
4
170 - Ethics
3
301 - Sociology & anthropology
3
361 - Social problems & social welfare in general
3
630 - Agriculture & related technologies
3
414 - Phonology & phonetics
2
800 - Literature & rhetoric
2
297 - Islam, Babism & Bahai Faith
1
400 - Language
1
410 - Linguistics
1
540 - Chemistry & allied sciences
1
550 - Earth sciences
1
657 - Accounting
1