Classification
900 - History & geography
478
820 - English & Old English literatures
142
340 - Law
97
320 - Political science
71
330 - Economics
50
370 - Education
44
972 - Middle America; Mexico
42
930 - History of ancient world to ca. 499
39
700 - The arts; fine & decorative arts
38
100 - Philosophy & psychology
23
300 - Social sciences
23
270 - History of Christianity & Christian church
21
140 - Specific philosophical schools
20
800 - Literature & rhetoric
19
200 - Religion
10
410 - Linguistics
10
301 - Sociology & anthropology
9
327 - International relations
9
400 - Language
9
610 - Medicine & health
9
720 - Architecture
8
940 - History of Europe
8
305 - Social groups
7
306 - Culture & institutions
7
500 - Natural sciences & mathematics
7
860 - Spanish & Portuguese literatures
6
000 - Computer science, information & general works
5
338 - Production
5
576 - Genetics & evolution
5
780 - Music
5
010 - Bibliography
4
020 - Library & information sciences
4
290 - Other religions
4
600 - Technology
4
943 - Central Europe; Germany
4
951 - China & adjacent areas
4
980 - History of South America
4
109 - Historical & collected persons treatment
3
230 - Christianity & Christian theology
3
304 - Factors affecting social behavior
3
331 - Labor economics
3
336 - Public finance
3
361 - Social problems & social welfare in general
3
520 - Astronomy & allied sciences
3
580 - Plants (Botany)
3
809 - History, description & criticism
3
870 - Italic literatures; Latin literature
3
070 - News media, journalism & publishing
2
210 - Philosophy & theory of religion
2
333 - Economics of land & energy
2
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