Classification
658 - General management
330 - Economics
7,983
300 - Social sciences
3,103
302 - Social interaction
3,099
331 - Labor economics
2,962
338 - Production
2,846
500 - Natural sciences & mathematics
2,539
381 - Commerce
2,197
005 - Computer programming, programs & data
2,090
000 - Computer science, information & general works
1,917
670 - Manufacturing
1,911
650 - Management & auxiliary services
1,488
384 - Communications; telecommunication
1,257
620 - Engineering & allied operations
1,011
158 - Applied psychology
985
332 - Financial economics
830
153 - Mental processes & intelligence
780
004 - Data processing & computer science
730
745 - Decorative arts
621
380 - Commerce, communications & transportation
579
006 - Special computer methods
435
368 - Insurance
339
001 - Knowledge
293
374 - Adult education
283
659 - Advertising & public relations
185
303 - Social processes
169
150 - Psychology
135
170 - Ethics
126
519 - Probabilities & applied mathematics
107
011 - Bibliographies
101
600 - Technology
98
510 - Mathematics
92
808 - Rhetoric & collections of literature
92
621 - Applied physics
91
155 - Differential & developmental psychology
86
304 - Factors affecting social behavior
79
339 - Macroeconomics & related topics
75
741 - Drawing & drawings
72
740 - Drawing & decorative arts
65
025 - Library operations
47
152 - Perception, movement, emotions & drives
47
174 - Occupational ethics
44
352 - General considerations of public administration
41
651 - Office services
41
362 - Social welfare problems & services
40
363 - Other social problems & services
40
371 - Schools & their activities; special education
38
800 - Literature & rhetoric
35
364 - Criminology
32
657 - Accounting
31
more ...