Classification
000 - Computer science, information & general works
1
001 - Knowledge
2
003 - Systems
3
004 - Data processing & computer science
6
005 - Computer programming, programs & data
1
006 - Special computer methods
2
100 - Philosophy & psychology
1
126 - The self
1
140 - Specific philosophical schools
1
142 - Critical philosophy
1
150 - Psychology
3
153 - Mental processes & intelligence
1
170 - Ethics
12
172 - Political ethics
1
174 - Occupational ethics
14
300 - Social sciences
5
301 - Sociology & anthropology
1
302 - Social interaction
2
304 - Factors affecting social behavior
5
306 - Culture & institutions
1
320 - Political science
37
327 - International relations
2
330 - Economics
65
331 - Labor economics
2
332 - Financial economics
11
333 - Economics of land & energy
6
337 - International economics
3
338 - Production
11
340 - Law
9
341 - Law of nations
2
342 - Constitutional & administrative law
2
343 - Military, tax, trade & industrial law
2
344 - Labor, social, education & cultural law
4
346 - Private law
6
347 - Civil procedure & courts
1
352 - General considerations of public administration
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
4
364 - Criminology
1
368 - Insurance
3
370 - Education
4
374 - Adult education
1
378 - Higher education
2
380 - Commerce, communications & transportation
1
382 - International commerce
1
384 - Communications; telecommunication
1
500 - Natural sciences & mathematics
1
519 - Probabilities & applied mathematics
3
530 - Physics
1
551 - Geology, hydrology & meteorology
2
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