Classification
005 - Computer programming, programs & data
004 - Data processing & computer science
539
331 - Labor economics
269
500 - Natural sciences & mathematics
211
658 - General management
176
374 - Adult education
162
330 - Economics
149
620 - Engineering & allied operations
131
745 - Decorative arts
90
384 - Communications; telecommunication
64
003 - Systems
62
323 - Civil & political rights
27
001 - Knowledge
16
381 - Commerce
13
302 - Social interaction
12
519 - Probabilities & applied mathematics
12
332 - Financial economics
11
364 - Criminology
11
600 - Technology
10
006 - Special computer methods
7
300 - Social sciences
7
510 - Mathematics
7
338 - Production
6
153 - Mental processes & intelligence
5
700 - The arts; fine & decorative arts
5
621 - Applied physics
4
650 - Management & auxiliary services
4
670 - Manufacturing
3
062 - Organizations in British Isles; in England
2
368 - Insurance
2
770 - Photography, photographs & computer art
2
011 - Bibliographies
1
025 - Library operations
1
371 - Schools & their activities; special education
1
741 - Drawing & drawings
1