Classification
000 - Computer science, information & general works
44
001 - Knowledge
26
004 - Data processing & computer science
5
005 - Computer programming, programs & data
18
006 - Special computer methods
18
011 - Bibliographies
1
150 - Psychology
29
152 - Perception, movement, emotions & drives
4
153 - Mental processes & intelligence
274
155 - Differential & developmental psychology
11
158 - Applied psychology
700
170 - Ethics
39
174 - Occupational ethics
19
253 - Pastoral office & work
1
300 - Social sciences
291
302 - Social interaction
295
303 - Social processes
8
304 - Factors affecting social behavior
5
320 - Political science
1
330 - Economics
331 - Labor economics
232
332 - Financial economics
16
334 - Cooperatives
1
338 - Production
294
339 - Macroeconomics & related topics
3
352 - General considerations of public administration
1
361 - Social problems & social welfare in general
1
362 - Social welfare problems & services
1
364 - Criminology
1
368 - Insurance
2
372 - Elementary education
1
380 - Commerce, communications & transportation
37
381 - Commerce
147
384 - Communications; telecommunication
69
388 - Transportation; ground transportation
1
500 - Natural sciences & mathematics
118
510 - Mathematics
1
600 - Technology
3
610 - Medicine & health
3
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
13
629 - Other branches of engineering
1
639 - Hunting, fishing & conservation
2
641 - Food & drink
1
650 - Management & auxiliary services
651 - Office services
1
658 - General management
659 - Advertising & public relations
8
670 - Manufacturing
142
740 - Drawing & decorative arts
2
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