Classification
601 - Philosophy & theory
88
006 - Special computer methods
19
170 - Ethics
16
501 - Philosophy & theory
14
303 - Social processes
9
620 - Engineering & allied operations
9
003 - Systems
7
174 - Occupational ethics
7
509 - Historical, geographic & persons treatment
6
621 - Applied physics
6
004 - Data processing & computer science
5
100 - Philosophy & psychology
5
306 - Culture & institutions
5
900 - History & geography
5
126 - The self
4
302 - Social interaction
4
338 - Production
4
341 - Law of nations
4
128 - Humankind
3
300 - Social sciences
3
530 - Physics
3
600 - Technology
3
629 - Other branches of engineering
3
005 - Computer programming, programs & data
2
301 - Sociology & anthropology
2
333 - Economics of land & energy
2
343 - Military, tax, trade & industrial law
2
541 - Physical chemistry
2
570 - Life sciences; biology
2
001 - Knowledge
1
040 - [Unassigned]
1
113 - Cosmology
1
142 - Critical philosophy
1
144 - Humanism & related systems
1
175 - Ethics of recreation & leisure
1
304 - Factors affecting social behavior
1
340 - Law
1
344 - Labor, social, education & cultural law
1
362 - Social welfare problems & services
1
370 - Education
1
371 - Schools & their activities; special education
1
510 - Mathematics
1
511 - General principles of mathematics
1
520 - Astronomy & allied sciences
1
624 - Civil engineering
1
641 - Food & drink
1
660 - Chemical engineering
1
664 - Food technology
1
745 - Decorative arts
1