Classification
000 - Computer science, information & general works
9
003 - Systems
1
004 - Data processing & computer science
10
005 - Computer programming, programs & data
12
006 - Special computer methods
11
011 - Bibliographies
1
040 - [Unassigned]
1
061 - Organizations in North America
1
100 - Philosophy & psychology
10
140 - Specific philosophical schools
13
150 - Psychology
7
155 - Differential & developmental psychology
2
158 - Applied psychology
26
170 - Ethics
5
174 - Occupational ethics
1
300 - Social sciences
10
301 - Sociology & anthropology
2
302 - Social interaction
2
304 - Factors affecting social behavior
3
305 - Social groups
1
306 - Culture & institutions
3
320 - Political science
5
330 - Economics
48
331 - Labor economics
10
333 - Economics of land & energy
19
338 - Production
9
340 - Law
4
342 - Constitutional & administrative law
1
343 - Military, tax, trade & industrial law
1
344 - Labor, social, education & cultural law
1
345 - Criminal law
1
346 - Private law
1
350 - Public administration & military science
1
352 - General considerations of public administration
1
353 - Specific fields of public administration
4
355 - Military science
1
360 - Social problems & services; associations
1
362 - Social welfare problems & services
6
363 - Other social problems & services
26
364 - Criminology
1
368 - Insurance
2
370 - Education
9
380 - Commerce, communications & transportation
7
500 - Natural sciences & mathematics
9
519 - Probabilities & applied mathematics
2
538 - Magnetism
1
540 - Chemistry & allied sciences
4
541 - Physical chemistry
3
542 - Techniques, equipment & materials
1
551 - Geology, hydrology & meteorology
5
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