Classification
100 - Philosophy & psychology
200 - Religion
124
900 - History & geography
61
170 - Ethics
34
140 - Specific philosophical schools
28
320 - Political science
27
700 - The arts; fine & decorative arts
24
530 - Physics
17
330 - Economics
14
340 - Law
13
300 - Social sciences
11
301 - Sociology & anthropology
11
800 - Literature & rhetoric
10
297 - Islam, Babism & Bahai Faith
9
370 - Education
9
296 - Judaism
8
610 - Medicine & health
6
120 - Epistemology, causation & humankind
4
400 - Language
4
333 - Economics of land & energy
3
363 - Other social problems & services
3
410 - Linguistics
3
581 - Specific topics in natural history
3
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
2
600 - Technology
2
620 - Engineering & allied operations
2
000 - Computer science, information & general works
1
128 - Humankind
1
160 - Logic
1
208 - Sources
1
230 - Christianity & Christian theology
1
248 - Christian experience, practice & life
1
304 - Factors affecting social behavior
1
306 - Culture & institutions
1
361 - Social problems & social welfare in general
1
580 - Plants (Botany)
1
630 - Agriculture & related technologies
1
780 - Music
1
973 - United States
1