Classification
808 - Rhetoric & collections of literature
330 - Economics
169
384 - Communications; telecommunication
122
380 - Commerce, communications & transportation
120
658 - General management
92
381 - Commerce
24
500 - Natural sciences & mathematics
23
302 - Social interaction
18
651 - Office services
16
000 - Computer science, information & general works
13
300 - Social sciences
11
620 - Engineering & allied operations
10
153 - Mental processes & intelligence
8
331 - Labor economics
8
670 - Manufacturing
8
338 - Production
6
650 - Management & auxiliary services
5
652 - Processes of written communication
5
004 - Data processing & computer science
4
745 - Decorative arts
4
150 - Psychology
3
519 - Probabilities & applied mathematics
3
006 - Special computer methods
2
011 - Bibliographies
2
303 - Social processes
2
332 - Financial economics
2
791 - Public performances
2
005 - Computer programming, programs & data
1
010 - Bibliography
1
155 - Differential & developmental psychology
1
158 - Applied psychology
1
168 - Argument & persuasion
1
374 - Adult education
1
428 - Standard English usage
1
659 - Advertising & public relations
1
740 - Drawing & decorative arts
1