Classification
300 - Social sciences
380 - Commerce, communications & transportation
658 - General management
384 - Communications; telecommunication
169
302 - Social interaction
130
330 - Economics
123
500 - Natural sciences & mathematics
61
670 - Manufacturing
59
331 - Labor economics
36
338 - Production
22
153 - Mental processes & intelligence
11
650 - Management & auxiliary services
11
381 - Commerce
8
000 - Computer science, information & general works
6
158 - Applied psychology
5
808 - Rhetoric & collections of literature
5
150 - Psychology
4
659 - Advertising & public relations
4
006 - Special computer methods
3
303 - Social processes
3
370 - Education
3
620 - Engineering & allied operations
3
700 - The arts; fine & decorative arts
3
152 - Perception, movement, emotions & drives
2
155 - Differential & developmental psychology
2
320 - Political science
2
340 - Law
2
001 - Knowledge
1
028 - Reading & use of other information media
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
400 - Language
1
530 - Physics
1
600 - Technology
1
780 - Music
1
791 - Public performances
1
900 - History & geography
1