Classification
330 - Economics
1,318
320 - Political science
562
340 - Law
448
519 - Probabilities & applied mathematics
345
610 - Medicine & health
228
360 - Social problems & services; associations
194
300 - Social sciences
189
658 - General management
149
368 - Insurance
122
332 - Financial economics
57
700 - The arts; fine & decorative arts
45
500 - Natural sciences & mathematics
40
820 - English & Old English literatures
36
338 - Production
34
900 - History & geography
27
000 - Computer science, information & general works
23
339 - Macroeconomics & related topics
23
650 - Management & auxiliary services
22
333 - Economics of land & energy
21
140 - Specific philosophical schools
20
380 - Commerce, communications & transportation
19
620 - Engineering & allied operations
18
362 - Social welfare problems & services
17
600 - Technology
17
363 - Other social problems & services
16
003 - Systems
14
551 - Geology, hydrology & meteorology
14
005 - Computer programming, programs & data
12
346 - Private law
12
004 - Data processing & computer science
10
331 - Labor economics
10
570 - Life sciences; biology
10
006 - Special computer methods
9
150 - Psychology
9
530 - Physics
9
301 - Sociology & anthropology
8
336 - Public finance
8
304 - Factors affecting social behavior
7
344 - Labor, social, education & cultural law
7
510 - Mathematics
7
657 - Accounting
7
361 - Social problems & social welfare in general
6
100 - Philosophy & psychology
5
170 - Ethics
5
200 - Religion
4
370 - Education
4
512 - Algebra
4
515 - Analysis
4
576 - Genetics & evolution
4
580 - Plants (Botany)
4
more ...