Classification
658 - General management
330 - Economics
7,715
300 - Social sciences
2,974
302 - Social interaction
2,905
331 - Labor economics
2,799
338 - Production
2,727
500 - Natural sciences & mathematics
2,457
381 - Commerce
2,029
005 - Computer programming, programs & data
1,909
000 - Computer science, information & general works
1,901
670 - Manufacturing
1,766
650 - Management & auxiliary services
1,474
384 - Communications; telecommunication
1,160
620 - Engineering & allied operations
1,002
158 - Applied psychology
916
332 - Financial economics
845
153 - Mental processes & intelligence
722
004 - Data processing & computer science
688
380 - Commerce, communications & transportation
596
745 - Decorative arts
585
006 - Special computer methods
408
368 - Insurance
330
001 - Knowledge
285
374 - Adult education
266
600 - Technology
193
659 - Advertising & public relations
182
303 - Social processes
160
700 - The arts; fine & decorative arts
148
170 - Ethics
132
150 - Psychology
124
363 - Other social problems & services
119
333 - Economics of land & energy
112
610 - Medicine & health
108
519 - Probabilities & applied mathematics
103
011 - Bibliographies
100
808 - Rhetoric & collections of literature
87
621 - Applied physics
86
510 - Mathematics
85
155 - Differential & developmental psychology
78
339 - Macroeconomics & related topics
75
304 - Factors affecting social behavior
73
741 - Drawing & drawings
70
740 - Drawing & decorative arts
64
900 - History & geography
53
140 - Specific philosophical schools
49
320 - Political science
45
800 - Literature & rhetoric
44
025 - Library operations
43
152 - Perception, movement, emotions & drives
41
362 - Social welfare problems & services
40
more ...