Classification
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338 - Production
1,513
339 - Macroeconomics & related topics
10
340 - Law
36
341 - Law of nations
2
342 - Constitutional & administrative law
7
343 - Military, tax, trade & industrial law
18
344 - Labor, social, education & cultural law
4
345 - Criminal law
2
346 - Private law
12
347 - Civil procedure & courts
1
350 - Public administration & military science
5
351 - Public administration
13
352 - General considerations of public administration
8
353 - Specific fields of public administration
1
355 - Military science
7
360 - Social problems & services; associations
4
361 - Social problems & social welfare in general
14
362 - Social welfare problems & services
26
363 - Other social problems & services
166
364 - Criminology
5
368 - Insurance
5
370 - Education
125
371 - Schools & their activities; special education
17
372 - Elementary education
1
374 - Adult education
3
375 - Curricula
1
378 - Higher education
9
380 - Commerce, communications & transportation
119
381 - Commerce
102
382 - International commerce
4
384 - Communications; telecommunication
136
388 - Transportation; ground transportation
4
400 - Language
17
410 - Linguistics
11
414 - Phonology & phonetics
7
418 - Standard usage & applied linguistics
1
500 - Natural sciences & mathematics
218
501 - Philosophy & theory
3
507 - Education, research & related topics
2
509 - Historical, geographic & persons treatment
2
510 - Mathematics
5
511 - General principles of mathematics
3
515 - Analysis
2
519 - Probabilities & applied mathematics
7
520 - Astronomy & allied sciences
10
523 - Specific celestial bodies & phenomena
2
530 - Physics
21
535 - Light & infrared & ultraviolet phenomena
1
539 - Modern physics
1
540 - Chemistry & allied sciences
51
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