Classification
651 - Office services
330 - Economics
87
384 - Communications; telecommunication
50
380 - Commerce, communications & transportation
47
658 - General management
41
808 - Rhetoric & collections of literature
15
381 - Commerce
12
500 - Natural sciences & mathematics
9
331 - Labor economics
8
338 - Production
8
600 - Technology
7
300 - Social sciences
5
302 - Social interaction
4
005 - Computer programming, programs & data
3
158 - Applied psychology
3
620 - Engineering & allied operations
3
650 - Management & auxiliary services
3
741 - Drawing & drawings
3
150 - Psychology
2
155 - Differential & developmental psychology
2
006 - Special computer methods
1
011 - Bibliographies
1
153 - Mental processes & intelligence
1
303 - Social processes
1
332 - Financial economics
1
374 - Adult education
1
670 - Manufacturing
1
745 - Decorative arts
1
770 - Photography, photographs & computer art
1