Classification
658 - General management
330 - Economics
811
300 - Social sciences
599
302 - Social interaction
548
000 - Computer science, information & general works
351
331 - Labor economics
298
670 - Manufacturing
244
500 - Natural sciences & mathematics
229
158 - Applied psychology
222
650 - Management & auxiliary services
208
338 - Production
179
384 - Communications; telecommunication
165
153 - Mental processes & intelligence
106
380 - Commerce, communications & transportation
105
303 - Social processes
45
001 - Knowledge
42
381 - Commerce
34
155 - Differential & developmental psychology
28
170 - Ethics
21
150 - Psychology
20
152 - Perception, movement, emotions & drives
17
620 - Engineering & allied operations
10
808 - Rhetoric & collections of literature
10
011 - Bibliographies
9
332 - Financial economics
9
362 - Social welfare problems & services
8
004 - Data processing & computer science
7
005 - Computer programming, programs & data
7
371 - Schools & their activities; special education
7
659 - Advertising & public relations
7
800 - Literature & rhetoric
7
352 - General considerations of public administration
5
973 - United States
5
304 - Factors affecting social behavior
4
368 - Insurance
4
745 - Decorative arts
4
355 - Military science
3
006 - Special computer methods
2
174 - Occupational ethics
2
305 - Social groups
2
324 - The political process
2
361 - Social problems & social welfare in general
2
378 - Higher education
2
600 - Technology
2
610 - Medicine & health
2
621 - Applied physics
2
796 - Athletic & outdoor sports & games
2
023 - Personnel management
1
025 - Library operations
1
177 - Ethics of social relations
1
more ...