Classification
170 - Ethics
200 - Religion
320 - Political science
100 - Philosophy & psychology
11
330 - Economics
10
140 - Specific philosophical schools
8
333 - Economics of land & energy
4
340 - Law
4
363 - Other social problems & services
4
700 - The arts; fine & decorative arts
4
900 - History & geography
4
301 - Sociology & anthropology
2
370 - Education
2
400 - Language
2
581 - Specific topics in natural history
2
120 - Epistemology, causation & humankind
1
241 - Christian ethics
1
261 - Social theology
1
297 - Islam, Babism & Bahai Faith
1
410 - Linguistics
1
520 - Astronomy & allied sciences
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
800 - Literature & rhetoric
1