Classification
005 - Computer programming, programs & data
4,197
570 - Life sciences; biology
2,514
006 - Special computer methods
1,020
500 - Natural sciences & mathematics
886
000 - Computer science, information & general works
783
004 - Data processing & computer science
557
745 - Decorative arts
554
620 - Engineering & allied operations
506
331 - Labor economics
438
658 - General management
269
384 - Communications; telecommunication
158
330 - Economics
122
794 - Indoor games of skill
103
302 - Social interaction
79
040 - [Unassigned]
78
621 - Applied physics
67
374 - Adult education
66
900 - History & geography
45
003 - Systems
43
600 - Technology
41
338 - Production
29
381 - Commerce
29
001 - Knowledge
28
300 - Social sciences
27
320 - Political science
27
629 - Other branches of engineering
20
910 - Geography & travel
20
670 - Manufacturing
19
700 - The arts; fine & decorative arts
19
333 - Economics of land & energy
18
518 - Numerical analysis
18
519 - Probabilities & applied mathematics
16
510 - Mathematics
15
650 - Management & auxiliary services
15
551 - Geology, hydrology & meteorology
14
025 - Library operations
11
306 - Culture & institutions
11
363 - Other social problems & services
11
530 - Physics
11
332 - Financial economics
9
371 - Schools & their activities; special education
9
781 - General principles & musical forms
9
297 - Islam, Babism & Bahai Faith
8
301 - Sociology & anthropology
8
340 - Law
8
380 - Commerce, communications & transportation
8
400 - Language
8
200 - Religion
7
659 - Advertising & public relations
7
936 - Europe north & west of Italy to ca. 499
7
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