Classification
384 - Communications; telecommunication
331 - Labor economics
845
004 - Data processing & computer science
370
620 - Engineering & allied operations
308
500 - Natural sciences & mathematics
295
005 - Computer programming, programs & data
190
658 - General management
174
374 - Adult education
155
000 - Computer science, information & general works
98
621 - Applied physics
90
330 - Economics
76
745 - Decorative arts
57
006 - Special computer methods
53
302 - Social interaction
50
338 - Production
40
380 - Commerce, communications & transportation
20
381 - Commerce
19
300 - Social sciences
11
650 - Management & auxiliary services
11
510 - Mathematics
9
670 - Manufacturing
8
681 - Precision instruments & other devices
7
600 - Technology
6
158 - Applied psychology
5
303 - Social processes
5
364 - Criminology
5
519 - Probabilities & applied mathematics
4
001 - Knowledge
3
011 - Bibliographies
2
332 - Financial economics
2
363 - Other social problems & services
2
659 - Advertising & public relations
2
700 - The arts; fine & decorative arts
2
003 - Systems
1
025 - Library operations
1
028 - Reading & use of other information media
1
153 - Mental processes & intelligence
1
304 - Factors affecting social behavior
1
362 - Social welfare problems & services
1
398 - Folklore
1
511 - General principles of mathematics
1
572 - Biochemistry
1
610 - Medicine & health
1
629 - Other branches of engineering
1
643 - Housing & household equipment
1
651 - Office services
1
781 - General principles & musical forms
1