Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
320 - Political science
700 - The arts; fine & decorative arts
33
330 - Economics
29
333 - Economics of land & energy
23
363 - Other social problems & services
23
600 - Technology
18
380 - Commerce, communications & transportation
15
551 - Geology, hydrology & meteorology
15
610 - Medicine & health
14
300 - Social sciences
9
581 - Specific topics in natural history
9
900 - History & geography
9
200 - Religion
6
620 - Engineering & allied operations
6
100 - Philosophy & psychology
5
304 - Factors affecting social behavior
5
340 - Law
5
370 - Education
5
630 - Agriculture & related technologies
5
361 - Social problems & social welfare in general
4
576 - Genetics & evolution
4
658 - General management
4
720 - Architecture
4
170 - Ethics
3
301 - Sociology & anthropology
3
414 - Phonology & phonetics
3
580 - Plants (Botany)
3
297 - Islam, Babism & Bahai Faith
2
540 - Chemistry & allied sciences
2
120 - Epistemology, causation & humankind
1
500 - Natural sciences & mathematics
1
550 - Earth sciences
1
657 - Accounting
1
800 - Literature & rhetoric
1