Classification
004 - Data processing & computer science
331 - Labor economics
1,367
005 - Computer programming, programs & data
1,238
500 - Natural sciences & mathematics
1,081
658 - General management
688
384 - Communications; telecommunication
509
621 - Applied physics
502
374 - Adult education
443
620 - Engineering & allied operations
338
745 - Decorative arts
223
330 - Economics
182
338 - Production
124
300 - Social sciences
34
006 - Special computer methods
33
510 - Mathematics
32
302 - Social interaction
30
600 - Technology
26
381 - Commerce
24
332 - Financial economics
15
670 - Manufacturing
13
650 - Management & auxiliary services
12
011 - Bibliographies
8
380 - Commerce, communications & transportation
8
158 - Applied psychology
6
001 - Knowledge
5
519 - Probabilities & applied mathematics
4
808 - Rhetoric & collections of literature
4
794 - Indoor games of skill
3
153 - Mental processes & intelligence
2
170 - Ethics
2
364 - Criminology
2
368 - Insurance
2
629 - Other branches of engineering
2
741 - Drawing & drawings
2
020 - Library & information sciences
1
152 - Perception, movement, emotions & drives
1
303 - Social processes
1
371 - Schools & their activities; special education
1
602 - Miscellany
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1
740 - Drawing & decorative arts
1
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1