Classification
330 - Economics
996
900 - History & geography
355
320 - Political science
264
700 - The arts; fine & decorative arts
132
820 - English & Old English literatures
96
340 - Law
86
333 - Economics of land & energy
74
600 - Technology
73
000 - Computer science, information & general works
66
620 - Engineering & allied operations
59
200 - Religion
53
300 - Social sciences
53
370 - Education
49
380 - Commerce, communications & transportation
44
363 - Other social problems & services
43
800 - Literature & rhetoric
41
140 - Specific philosophical schools
40
610 - Medicine & health
39
400 - Language
36
576 - Genetics & evolution
32
100 - Philosophy & psychology
31
410 - Linguistics
27
297 - Islam, Babism & Bahai Faith
25
551 - Geology, hydrology & meteorology
20
658 - General management
16
580 - Plants (Botany)
15
170 - Ethics
14
301 - Sociology & anthropology
14
630 - Agriculture & related technologies
14
780 - Music
14
943 - Central Europe; Germany
14
230 - Christianity & Christian theology
13
304 - Factors affecting social behavior
13
500 - Natural sciences & mathematics
13
270 - History of Christianity & Christian church
12
720 - Architecture
11
937 - Italy & adjacent territories to 476
11
940 - History of Europe
11
530 - Physics
9
414 - Phonology & phonetics
8
949 - Other parts of Europe
8
956 - Middle East (Near East)
7
909 - World history
6
540 - Chemistry & allied sciences
5
770 - Photography, photographs & computer art
5
930 - History of ancient world to ca. 499
5
970 - History of North America
5
520 - Astronomy & allied sciences
4
550 - Earth sciences
4
261 - Social theology
3
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