Classification
005 - Computer programming, programs & data
500 - Natural sciences & mathematics
2,565
620 - Engineering & allied operations
1,065
003 - Systems
466
331 - Labor economics
362
658 - General management
346
004 - Data processing & computer science
318
384 - Communications; telecommunication
314
745 - Decorative arts
150
330 - Economics
77
374 - Adult education
73
300 - Social sciences
40
510 - Mathematics
30
302 - Social interaction
21
519 - Probabilities & applied mathematics
21
364 - Criminology
20
338 - Production
17
323 - Civil & political rights
15
001 - Knowledge
13
381 - Commerce
13
332 - Financial economics
11
670 - Manufacturing
8
600 - Technology
7
006 - Special computer methods
6
011 - Bibliographies
3
153 - Mental processes & intelligence
3
368 - Insurance
3
650 - Management & auxiliary services
3
025 - Library operations
1
158 - Applied psychology
1
301 - Sociology & anthropology
1
363 - Other social problems & services
1
371 - Schools & their activities; special education
1
629 - Other branches of engineering
1
700 - The arts; fine & decorative arts
1
740 - Drawing & decorative arts
1
770 - Photography, photographs & computer art
1
781 - General principles & musical forms
1
800 - Literature & rhetoric
1