Classification
330 - Economics
270
658 - General management
248
006 - Special computer methods
141
341 - Law of nations
139
300 - Social sciences
118
745 - Decorative arts
118
500 - Natural sciences & mathematics
114
302 - Social interaction
110
340 - Law
106
331 - Labor economics
88
307 - Communities
74
005 - Computer programming, programs & data
73
338 - Production
67
900 - History & geography
67
304 - Factors affecting social behavior
64
384 - Communications; telecommunication
64
000 - Computer science, information & general works
60
620 - Engineering & allied operations
55
501 - Philosophy & theory
54
770 - Photography, photographs & computer art
54
515 - Analysis
50
670 - Manufacturing
49
910 - Geography & travel
49
332 - Financial economics
48
153 - Mental processes & intelligence
38
342 - Constitutional & administrative law
38
519 - Probabilities & applied mathematics
38
621 - Applied physics
38
158 - Applied psychology
37
345 - Criminal law
36
631 - Techniques, equipment & materials
35
344 - Labor, social, education & cultural law
34
346 - Private law
31
155 - Differential & developmental psychology
30
650 - Management & auxiliary services
30
381 - Commerce
28
333 - Economics of land & energy
24
510 - Mathematics
24
551 - Geology, hydrology & meteorology
24
777 - [Unassigned]
24
363 - Other social problems & services
23
512 - Algebra
22
686 - Printing & related activities
22
791 - Public performances
22
320 - Political science
21
610 - Medicine & health
21
380 - Commerce, communications & transportation
20
004 - Data processing & computer science
19
306 - Culture & institutions
19
001 - Knowledge
18
more ...