Classification
330 - Economics
1,196
320 - Political science
817
333 - Economics of land & energy
341
340 - Law
243
341 - Law of nations
207
304 - Factors affecting social behavior
181
338 - Production
155
610 - Medicine & health
148
363 - Other social problems & services
139
327 - International relations
123
300 - Social sciences
109
380 - Commerce, communications & transportation
101
343 - Military, tax, trade & industrial law
99
337 - International economics
93
600 - Technology
84
342 - Constitutional & administrative law
83
370 - Education
80
658 - General management
76
900 - History & geography
71
700 - The arts; fine & decorative arts
70
630 - Agriculture & related technologies
64
332 - Financial economics
63
620 - Engineering & allied operations
61
306 - Culture & institutions
60
344 - Labor, social, education & cultural law
53
000 - Computer science, information & general works
50
331 - Labor economics
40
346 - Private law
40
339 - Macroeconomics & related topics
34
005 - Computer programming, programs & data
32
140 - Specific philosophical schools
29
361 - Social problems & social welfare in general
29
551 - Geology, hydrology & meteorology
29
336 - Public finance
26
301 - Sociology & anthropology
24
621 - Applied physics
24
345 - Criminal law
23
577 - Ecology
22
500 - Natural sciences & mathematics
21
006 - Special computer methods
19
305 - Social groups
19
570 - Life sciences; biology
19
664 - Food technology
19
004 - Data processing & computer science
17
364 - Criminology
17
400 - Language
17
410 - Linguistics
17
615 - Pharmacology & therapeutics
16
657 - Accounting
16
170 - Ethics
15
more ...