Classification
300 - Social sciences
658 - General management
3,116
302 - Social interaction
2,497
330 - Economics
2,431
500 - Natural sciences & mathematics
1,558
670 - Manufacturing
1,437
338 - Production
880
331 - Labor economics
745
650 - Management & auxiliary services
337
381 - Commerce
303
384 - Communications; telecommunication
301
158 - Applied psychology
257
153 - Mental processes & intelligence
230
380 - Commerce, communications & transportation
182
000 - Computer science, information & general works
142
620 - Engineering & allied operations
101
332 - Financial economics
94
001 - Knowledge
74
745 - Decorative arts
68
005 - Computer programming, programs & data
61
150 - Psychology
51
303 - Social processes
49
368 - Insurance
47
004 - Data processing & computer science
36
170 - Ethics
30
371 - Schools & their activities; special education
30
006 - Special computer methods
29
362 - Social welfare problems & services
26
659 - Advertising & public relations
24
510 - Mathematics
20
155 - Differential & developmental psychology
19
337 - International economics
15
519 - Probabilities & applied mathematics
15
152 - Perception, movement, emotions & drives
14
304 - Factors affecting social behavior
14
610 - Medicine & health
14
352 - General considerations of public administration
12
657 - Accounting
11
808 - Rhetoric & collections of literature
11
174 - Occupational ethics
8
343 - Military, tax, trade & industrial law
8
025 - Library operations
7
306 - Culture & institutions
7
364 - Criminology
7
374 - Adult education
7
011 - Bibliographies
6
361 - Social problems & social welfare in general
5
600 - Technology
5
651 - Office services
5
800 - Literature & rhetoric
5
more ...