Classification
320 - Political science
146
330 - Economics
107
900 - History & geography
80
700 - The arts; fine & decorative arts
45
100 - Philosophy & psychology
37
340 - Law
27
200 - Religion
25
300 - Social sciences
23
370 - Education
23
140 - Specific philosophical schools
22
333 - Economics of land & energy
22
301 - Sociology & anthropology
16
800 - Literature & rhetoric
15
820 - English & Old English literatures
15
297 - Islam, Babism & Bahai Faith
13
170 - Ethics
12
230 - Christianity & Christian theology
12
400 - Language
12
600 - Technology
10
000 - Computer science, information & general works
9
304 - Factors affecting social behavior
9
363 - Other social problems & services
9
576 - Genetics & evolution
8
610 - Medicine & health
8
323 - Civil & political rights
7
380 - Commerce, communications & transportation
7
620 - Engineering & allied operations
7
780 - Music
5
342 - Constitutional & administrative law
4
361 - Social problems & social welfare in general
4
551 - Geology, hydrology & meteorology
4
630 - Agriculture & related technologies
4
321 - Systems of governments & states
3
324 - The political process
3
345 - Criminal law
3
581 - Specific topics in natural history
3
120 - Epistemology, causation & humankind
2
261 - Social theology
2
282 - Roman Catholic Church
2
296 - Judaism
2
341 - Law of nations
2
349 - Law of specific jurisdictions & areas
2
540 - Chemistry & allied sciences
2
580 - Plants (Botany)
2
720 - Architecture
2
791 - Public performances
2
016 - Bibliographies of works on specific subjects
1
172 - Political ethics
1
179 - Other ethical norms
1
186 - Skeptic & Neoplatonic philosophies
1
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