Classification
330 - Economics
1,004
320 - Political science
152
300 - Social sciences
146
304 - Factors affecting social behavior
118
301 - Sociology & anthropology
116
306 - Culture & institutions
96
333 - Economics of land & energy
91
700 - The arts; fine & decorative arts
87
370 - Education
83
305 - Social groups
79
000 - Computer science, information & general works
71
361 - Social problems & social welfare in general
66
610 - Medicine & health
59
600 - Technology
47
900 - History & geography
45
500 - Natural sciences & mathematics
44
340 - Law
41
140 - Specific philosophical schools
40
100 - Philosophy & psychology
36
363 - Other social problems & services
36
380 - Commerce, communications & transportation
31
576 - Genetics & evolution
25
307 - Communities
23
515 - Analysis
22
200 - Religion
16
620 - Engineering & allied operations
16
364 - Criminology
15
170 - Ethics
13
338 - Production
11
551 - Geology, hydrology & meteorology
11
360 - Social problems & services; associations
9
530 - Physics
9
297 - Islam, Babism & Bahai Faith
8
302 - Social interaction
8
658 - General management
8
400 - Language
7
581 - Specific topics in natural history
7
327 - International relations
6
510 - Mathematics
6
155 - Differential & developmental psychology
5
580 - Plants (Botany)
5
630 - Agriculture & related technologies
5
720 - Architecture
5
800 - Literature & rhetoric
5
345 - Criminal law
4
350 - Public administration & military science
4
519 - Probabilities & applied mathematics
4
303 - Social processes
3
379 - Public policy issues in education
3
512 - Algebra
3
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