Classification
970 - History of North America
224
330 - Economics
162
320 - Political science
121
900 - History & geography
90
820 - English & Old English literatures
68
809 - History, description & criticism
59
340 - Law
57
301 - Sociology & anthropology
24
200 - Religion
13
610 - Medicine & health
13
620 - Engineering & allied operations
13
300 - Social sciences
12
576 - Genetics & evolution
12
305 - Social groups
9
360 - Social problems & services; associations
9
700 - The arts; fine & decorative arts
9
800 - Literature & rhetoric
7
973 - United States
6
140 - Specific philosophical schools
5
323 - Civil & political rights
5
338 - Production
5
400 - Language
5
570 - Life sciences; biology
5
808 - Rhetoric & collections of literature
5
910 - Geography & travel
5
303 - Social processes
4
304 - Factors affecting social behavior
4
306 - Culture & institutions
4
370 - Education
4
580 - Plants (Botany)
4
628 - Sanitary & municipal engineering
4
930 - History of ancient world to ca. 499
4
000 - Computer science, information & general works
3
100 - Philosophy & psychology
3
240 - Christian moral & devotional theology
3
280 - Christian denominations & sects
3
299 - Religions not provided for elsewhere
3
337 - International economics
3
346 - Private law
3
363 - Other social problems & services
3
490 - Other languages
3
632 - Plant injuries, diseases & pests
3
791 - Public performances
3
792 - Stage presentations
3
801 - Philosophy & theory
3
979 - Great Basin & Pacific Slope region
3
170 - Ethics
2
297 - Islam, Babism & Bahai Faith
2
327 - International relations
2
333 - Economics of land & energy
2
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