Classification
658 - General management
245
330 - Economics
228
006 - Special computer methods
138
745 - Decorative arts
118
500 - Natural sciences & mathematics
108
302 - Social interaction
102
300 - Social sciences
96
331 - Labor economics
84
384 - Communications; telecommunication
64
338 - Production
59
005 - Computer programming, programs & data
58
620 - Engineering & allied operations
53
770 - Photography, photographs & computer art
52
000 - Computer science, information & general works
50
670 - Manufacturing
49
332 - Financial economics
42
158 - Applied psychology
37
153 - Mental processes & intelligence
30
650 - Management & auxiliary services
29
381 - Commerce
28
777 - [Unassigned]
24
686 - Printing & related activities
19
791 - Public performances
19
621 - Applied physics
17
004 - Data processing & computer science
15
380 - Commerce, communications & transportation
15
170 - Ethics
12
740 - Drawing & decorative arts
9
808 - Rhetoric & collections of literature
9
001 - Knowledge
8
303 - Social processes
8
150 - Psychology
6
304 - Factors affecting social behavior
6
778 - Fields & kinds of photography
6
510 - Mathematics
5
659 - Advertising & public relations
5
155 - Differential & developmental psychology
4
306 - Culture & institutions
4
629 - Other branches of engineering
4
741 - Drawing & drawings
4
781 - General principles & musical forms
4
800 - Literature & rhetoric
4
174 - Occupational ethics
3
339 - Macroeconomics & related topics
3
519 - Probabilities & applied mathematics
3
744 - [Unassigned]
3
794 - Indoor games of skill
3
346 - Private law
2
361 - Social problems & social welfare in general
2
362 - Social welfare problems & services
2
more ...