Classification
500 - Natural sciences & mathematics
005 - Computer programming, programs & data
1,401
620 - Engineering & allied operations
656
331 - Labor economics
307
006 - Special computer methods
237
384 - Communications; telecommunication
201
004 - Data processing & computer science
192
658 - General management
187
000 - Computer science, information & general works
186
745 - Decorative arts
156
330 - Economics
86
302 - Social interaction
66
300 - Social sciences
54
519 - Probabilities & applied mathematics
46
670 - Manufacturing
44
510 - Mathematics
39
794 - Indoor games of skill
28
374 - Adult education
23
338 - Production
18
025 - Library operations
17
629 - Other branches of engineering
16
520 - Astronomy & allied sciences
13
600 - Technology
12
621 - Applied physics
12
381 - Commerce
11
153 - Mental processes & intelligence
9
001 - Knowledge
8
370 - Education
8
332 - Financial economics
7
100 - Philosophy & psychology
6
304 - Factors affecting social behavior
5
363 - Other social problems & services
5
910 - Geography & travel
5
364 - Criminology
4
530 - Physics
4
650 - Management & auxiliary services
4
770 - Photography, photographs & computer art
4
790 - Recreational & performing arts
4
333 - Economics of land & energy
3
140 - Specific philosophical schools
2
158 - Applied psychology
2
303 - Social processes
2
340 - Law
2
352 - General considerations of public administration
2
368 - Insurance
2
400 - Language
2
502 - Miscellany
2
570 - Life sciences; biology
2
700 - The arts; fine & decorative arts
2
741 - Drawing & drawings
2
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