Classification
330 - Economics
15
658 - General management
13
000 - Computer science, information & general works
12
011 - Bibliographies
9
338 - Production
7
158 - Applied psychology
5
006 - Special computer methods
2
331 - Labor economics
2
650 - Management & auxiliary services
2
150 - Psychology
1
153 - Mental processes & intelligence
1
300 - Social sciences
1
381 - Commerce
1
770 - Photography, photographs & computer art
1
808 - Rhetoric & collections of literature
1