Classification
370 - Education
313
330 - Economics
101
700 - The arts; fine & decorative arts
96
333 - Economics of land & energy
91
610 - Medicine & health
90
900 - History & geography
80
400 - Language
79
600 - Technology
66
000 - Computer science, information & general works
64
363 - Other social problems & services
63
320 - Political science
60
100 - Philosophy & psychology
54
380 - Commerce, communications & transportation
52
300 - Social sciences
42
140 - Specific philosophical schools
39
500 - Natural sciences & mathematics
39
620 - Engineering & allied operations
29
540 - Chemistry & allied sciences
28
378 - Higher education
25
800 - Literature & rhetoric
25
410 - Linguistics
24
340 - Law
23
658 - General management
21
371 - Schools & their activities; special education
17
820 - English & Old English literatures
17
580 - Plants (Botany)
14
304 - Factors affecting social behavior
12
551 - Geology, hydrology & meteorology
12
200 - Religion
11
170 - Ethics
10
301 - Sociology & anthropology
9
576 - Genetics & evolution
8
720 - Architecture
8
780 - Music
8
581 - Specific topics in natural history
6
297 - Islam, Babism & Bahai Faith
5
630 - Agriculture & related technologies
5
306 - Culture & institutions
4
360 - Social problems & services; associations
4
379 - Public policy issues in education
4
530 - Physics
4
612 - Human physiology
4
657 - Accounting
4
120 - Epistemology, causation & humankind
3
280 - Christian denominations & sects
3
331 - Labor economics
3
361 - Social problems & social welfare in general
3
414 - Phonology & phonetics
3
507 - Education, research & related topics
3
615 - Pharmacology & therapeutics
3
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