Classification
000 - Computer science, information & general works
863
658 - General management
137
005 - Computer programming, programs & data
127
006 - Special computer methods
58
331 - Labor economics
34
330 - Economics
28
004 - Data processing & computer science
27
650 - Management & auxiliary services
19
620 - Engineering & allied operations
18
621 - Applied physics
17
338 - Production
15
745 - Decorative arts
15
770 - Photography, photographs & computer art
15
500 - Natural sciences & mathematics
14
302 - Social interaction
13
303 - Social processes
11
670 - Manufacturing
11
158 - Applied psychology
9
381 - Commerce
9
153 - Mental processes & intelligence
8
771 - Techniques, equipment & materials
8
300 - Social sciences
7
332 - Financial economics
7
510 - Mathematics
7
001 - Knowledge
6
374 - Adult education
6
384 - Communications; telecommunication
6
778 - Fields & kinds of photography
6
791 - Public performances
5
371 - Schools & their activities; special education
4
519 - Probabilities & applied mathematics
4
781 - General principles & musical forms
4
570 - Life sciences; biology
3
777 - [Unassigned]
3
155 - Differential & developmental psychology
2
301 - Sociology & anthropology
2
333 - Economics of land & energy
2
368 - Insurance
2
380 - Commerce, communications & transportation
2
700 - The arts; fine & decorative arts
2
780 - Music
2
003 - Systems
1
150 - Psychology
1
174 - Occupational ethics
1
305 - Social groups
1
306 - Culture & institutions
1
342 - Constitutional & administrative law
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
502 - Miscellany
1
more ...