Classification
000 - Computer science, information & general works
17
001 - Knowledge
1
003 - Systems
1
004 - Data processing & computer science
7
005 - Computer programming, programs & data
9
006 - Special computer methods
2
011 - Bibliographies
1
100 - Philosophy & psychology
2
140 - Specific philosophical schools
6
158 - Applied psychology
1
160 - Logic
1
170 - Ethics
2
174 - Occupational ethics
5
300 - Social sciences
19
302 - Social interaction
7
306 - Culture & institutions
1
320 - Political science
27
330 - Economics
179
331 - Labor economics
20
332 - Financial economics
72
333 - Economics of land & energy
18
336 - Public finance
34
337 - International economics
4
338 - Production
27
339 - Macroeconomics & related topics
6
340 - Law
11
342 - Constitutional & administrative law
1
343 - Military, tax, trade & industrial law
7
345 - Criminal law
1
346 - Private law
9
352 - General considerations of public administration
3
353 - Specific fields of public administration
1
361 - Social problems & social welfare in general
2
363 - Other social problems & services
14
364 - Criminology
1
368 - Insurance
6
370 - Education
4
374 - Adult education
14
380 - Commerce, communications & transportation
8
381 - Commerce
2
384 - Communications; telecommunication
2
400 - Language
1
410 - Linguistics
1
500 - Natural sciences & mathematics
13
510 - Mathematics
1
519 - Probabilities & applied mathematics
2
520 - Astronomy & allied sciences
1
531 - Classical mechanics; solid mechanics
1
551 - Geology, hydrology & meteorology
3
580 - Plants (Botany)
3
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