Classification
330 - Economics
25
658 - General management
25
005 - Computer programming, programs & data
20
381 - Commerce
20
006 - Special computer methods
16
004 - Data processing & computer science
14
380 - Commerce, communications & transportation
14
302 - Social interaction
13
331 - Labor economics
12
000 - Computer science, information & general works
11
500 - Natural sciences & mathematics
8
600 - Technology
8
900 - History & geography
8
384 - Communications; telecommunication
7
745 - Decorative arts
7
300 - Social sciences
6
320 - Political science
6
340 - Law
6
621 - Applied physics
6
659 - Advertising & public relations
6
770 - Photography, photographs & computer art
6
410 - Linguistics
5
700 - The arts; fine & decorative arts
5
400 - Language
4
620 - Engineering & allied operations
4
791 - Public performances
4
800 - Literature & rhetoric
4
170 - Ethics
3
333 - Economics of land & energy
3
370 - Education
3
610 - Medicine & health
3
650 - Management & auxiliary services
3
777 - [Unassigned]
3
780 - Music
3
790 - Recreational & performing arts
3
794 - Indoor games of skill
3
140 - Specific philosophical schools
2
158 - Applied psychology
2
200 - Religion
2
297 - Islam, Babism & Bahai Faith
2
530 - Physics
2
003 - Systems
1
025 - Library operations
1
100 - Philosophy & psychology
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
305 - Social groups
1
338 - Production
1
363 - Other social problems & services
1
418 - Standard usage & applied linguistics
1
more ...