Classification
900 - History & geography
755
320 - Political science
223
940 - History of Europe
178
300 - Social sciences
78
700 - The arts; fine & decorative arts
60
330 - Economics
50
140 - Specific philosophical schools
48
306 - Culture & institutions
48
947 - Eastern Europe; Russia
42
200 - Religion
35
800 - Literature & rhetoric
33
909 - World history
28
100 - Philosophy & psychology
27
301 - Sociology & anthropology
25
380 - Commerce, communications & transportation
23
327 - International relations
22
610 - Medicine & health
22
576 - Genetics & evolution
20
340 - Law
17
941 - British Isles
17
400 - Language
16
305 - Social groups
15
600 - Technology
15
809 - History, description & criticism
15
304 - Factors affecting social behavior
13
410 - Linguistics
13
370 - Education
11
720 - Architecture
11
363 - Other social problems & services
10
944 - France & Monaco
10
297 - Islam, Babism & Bahai Faith
9
620 - Engineering & allied operations
9
509 - Historical, geographic & persons treatment
8
791 - Public performances
8
943 - Central Europe; Germany
8
000 - Computer science, information & general works
7
170 - Ethics
7
333 - Economics of land & energy
7
361 - Social problems & social welfare in general
7
296 - Judaism
6
325 - International migration & colonization
6
780 - Music
6
945 - Italian Peninsula & adjacent islands
6
950 - History of Asia; Far East
5
350 - Public administration & military science
4
418 - Standard usage & applied linguistics
4
630 - Agriculture & related technologies
4
770 - Photography, photographs & computer art
4
973 - United States
4
332 - Financial economics
3
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