Classification
340 - Law
309
330 - Economics
136
320 - Political science
128
900 - History & geography
53
300 - Social sciences
39
820 - English & Old English literatures
30
005 - Computer programming, programs & data
29
970 - History of North America
28
658 - General management
23
800 - Literature & rhetoric
23
500 - Natural sciences & mathematics
21
620 - Engineering & allied operations
21
338 - Production
16
616 - Diseases
16
363 - Other social problems & services
15
370 - Education
15
512 - Algebra
15
384 - Communications; telecommunication
12
610 - Medicine & health
12
006 - Special computer methods
11
306 - Culture & institutions
11
331 - Labor economics
11
510 - Mathematics
11
519 - Probabilities & applied mathematics
11
400 - Language
10
700 - The arts; fine & decorative arts
10
301 - Sociology & anthropology
9
333 - Economics of land & energy
9
621 - Applied physics
9
004 - Data processing & computer science
8
140 - Specific philosophical schools
8
362 - Social welfare problems & services
8
380 - Commerce, communications & transportation
8
001 - Knowledge
7
530 - Physics
7
540 - Chemistry & allied sciences
7
551 - Geology, hydrology & meteorology
7
745 - Decorative arts
7
345 - Criminal law
6
515 - Analysis
6
571 - Physiology & related subjects
6
577 - Ecology
6
580 - Plants (Botany)
6
302 - Social interaction
5
304 - Factors affecting social behavior
5
410 - Linguistics
5
541 - Physical chemistry
5
550 - Earth sciences
5
660 - Chemical engineering
5
062 - Organizations in British Isles; in England
4
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