Classification
659 - Advertising & public relations
330 - Economics
124
658 - General management
107
381 - Commerce
80
302 - Social interaction
48
331 - Labor economics
26
006 - Special computer methods
22
384 - Communications; telecommunication
22
300 - Social sciences
20
338 - Production
17
500 - Natural sciences & mathematics
17
670 - Manufacturing
12
380 - Commerce, communications & transportation
10
158 - Applied psychology
7
650 - Management & auxiliary services
6
001 - Knowledge
3
170 - Ethics
3
303 - Social processes
3
332 - Financial economics
3
000 - Computer science, information & general works
2
153 - Mental processes & intelligence
2
745 - Decorative arts
2
011 - Bibliographies
1
155 - Differential & developmental psychology
1
174 - Occupational ethics
1
333 - Economics of land & energy
1
352 - General considerations of public administration
1
368 - Insurance
1
629 - Other branches of engineering
1
800 - Literature & rhetoric
1