Classification
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330 - Economics
574
331 - Labor economics
42
332 - Financial economics
11
333 - Economics of land & energy
945
335 - Socialism & related systems
1
337 - International economics
2
338 - Production
55
339 - Macroeconomics & related topics
3
340 - Law
281
341 - Law of nations
22
342 - Constitutional & administrative law
36
343 - Military, tax, trade & industrial law
9
344 - Labor, social, education & cultural law
4
345 - Criminal law
1
346 - Private law
5
347 - Civil procedure & courts
31
350 - Public administration & military science
22
351 - Public administration
18
352 - General considerations of public administration
5
354 - Administration of economy & environment
1
355 - Military science
6
358 - Air & other specialized forces
1
359 - Sea forces & warfare
3
360 - Social problems & services; associations
5
361 - Social problems & social welfare in general
10
363 - Other social problems & services
202
364 - Criminology
4
365 - Penal & related institutions
1
368 - Insurance
1
370 - Education
39
371 - Schools & their activities; special education
2
374 - Adult education
13
375 - Curricula
1
378 - Higher education
1
380 - Commerce, communications & transportation
192
381 - Commerce
11
382 - International commerce
3
384 - Communications; telecommunication
28
387 - Water, air & space transportation
1
388 - Transportation; ground transportation
1
390 - Customs, etiquette & folklore
1
400 - Language
18
410 - Linguistics
10
414 - Phonology & phonetics
29
500 - Natural sciences & mathematics
187
509 - Historical, geographic & persons treatment
1
510 - Mathematics
8
511 - General principles of mathematics
1
515 - Analysis
8
518 - Numerical analysis
1
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