Classification
005 - Computer programming, programs & data
1,806
374 - Adult education
1,436
331 - Labor economics
938
004 - Data processing & computer science
876
658 - General management
671
000 - Computer science, information & general works
467
330 - Economics
421
500 - Natural sciences & mathematics
411
620 - Engineering & allied operations
362
384 - Communications; telecommunication
289
006 - Special computer methods
281
621 - Applied physics
116
745 - Decorative arts
106
610 - Medicine & health
97
340 - Law
96
333 - Economics of land & energy
94
320 - Political science
88
363 - Other social problems & services
87
300 - Social sciences
82
616 - Diseases
72
302 - Social interaction
64
670 - Manufacturing
62
338 - Production
60
600 - Technology
56
040 - [Unassigned]
51
370 - Education
51
381 - Commerce
50
617 - Surgery & related medical specialties
46
003 - Systems
42
820 - English & Old English literatures
38
380 - Commerce, communications & transportation
37
629 - Other branches of engineering
37
332 - Financial economics
33
700 - The arts; fine & decorative arts
33
650 - Management & auxiliary services
30
304 - Factors affecting social behavior
29
630 - Agriculture & related technologies
28
364 - Criminology
26
900 - History & geography
25
371 - Schools & their activities; special education
24
001 - Knowledge
22
519 - Probabilities & applied mathematics
21
368 - Insurance
18
153 - Mental processes & intelligence
16
657 - Accounting
16
664 - Food technology
16
510 - Mathematics
15
580 - Plants (Botany)
15
571 - Physiology & related subjects
14
577 - Ecology
14
more ...