Classification
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330 - Economics
1,302
331 - Labor economics
80
332 - Financial economics
37
333 - Economics of land & energy
56
336 - Public finance
13
338 - Production
75
339 - Macroeconomics & related topics
4
340 - Law
27
341 - Law of nations
8
342 - Constitutional & administrative law
1
343 - Military, tax, trade & industrial law
5
344 - Labor, social, education & cultural law
3
345 - Criminal law
2
346 - Private law
20
351 - Public administration
1
352 - General considerations of public administration
3
355 - Military science
1
361 - Social problems & social welfare in general
5
362 - Social welfare problems & services
8
363 - Other social problems & services
61
364 - Criminology
6
368 - Insurance
4
370 - Education
59
371 - Schools & their activities; special education
16
372 - Elementary education
1
374 - Adult education
31
378 - Higher education
6
379 - Public policy issues in education
6
380 - Commerce, communications & transportation
45
381 - Commerce
17
384 - Communications; telecommunication
39
400 - Language
3
401 - Philosophy & theory
1
410 - Linguistics
3
418 - Standard usage & applied linguistics
4
496 - African languages
1
500 - Natural sciences & mathematics
99
501 - Philosophy & theory
5
507 - Education, research & related topics
2
509 - Historical, geographic & persons treatment
3
510 - Mathematics
30
511 - General principles of mathematics
5
512 - Algebra
5
514 - Topology
2
515 - Analysis
16
516 - Geometry
4
518 - Numerical analysis
1
519 - Probabilities & applied mathematics
18
523 - Specific celestial bodies & phenomena
4
530 - Physics
10
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