Classification
003 - Systems
6
004 - Data processing & computer science
5
005 - Computer programming, programs & data
4
006 - Special computer methods
12
011 - Bibliographies
1
033 - Encyclopedias in other Germanic languages
6
036 - Encyclopedias in Spanish & Portuguese
1
090 - Manuscripts & rare books
6
150 - Psychology
1
155 - Differential & developmental psychology
2
201 - Religious mythology & social theology
1
300 - Social sciences
6
301 - Sociology & anthropology
9
302 - Social interaction
8
303 - Social processes
6
304 - Factors affecting social behavior
405
305 - Social groups
34
306 - Culture & institutions
52
307 - Communities
435
320 - Political science
40
324 - The political process
2
325 - International migration & colonization
1
327 - International relations
3
328 - The legislative process
1
330 - Economics
51
331 - Labor economics
4
333 - Economics of land & energy
103
335 - Socialism & related systems
1
336 - Public finance
1
337 - International economics
1
338 - Production
49
339 - Macroeconomics & related topics
5
341 - Law of nations
1
344 - Labor, social, education & cultural law
3
351 - Public administration
4
352 - General considerations of public administration
1
355 - Military science
1
361 - Social problems & social welfare in general
12
362 - Social welfare problems & services
1
363 - Other social problems & services
29
364 - Criminology
7
370 - Education
1
372 - Elementary education
1
379 - Public policy issues in education
2
381 - Commerce
1
388 - Transportation; ground transportation
1
407 - Education, research & related topics
1
500 - Natural sciences & mathematics
4
515 - Analysis
3
519 - Probabilities & applied mathematics
2
more ...