Classification
370 - Education
244
379 - Public policy issues in education
226
378 - Higher education
135
371 - Schools & their activities; special education
102
306 - Culture & institutions
72
320 - Political science
56
418 - Standard usage & applied linguistics
23
372 - Elementary education
22
300 - Social sciences
21
374 - Adult education
14
333 - Economics of land & energy
13
375 - Curricula
13
507 - Education, research & related topics
11
338 - Production
9
510 - Mathematics
9
155 - Differential & developmental psychology
8
304 - Factors affecting social behavior
8
361 - Social problems & social welfare in general
8
616 - Diseases
8
305 - Social groups
7
658 - General management
7
100 - Philosophy & psychology
5
363 - Other social problems & services
5
700 - The arts; fine & decorative arts
4
303 - Social processes
3
551 - Geology, hydrology & meteorology
3
613 - Personal health & safety
3
003 - Systems
2
107 - Education, research & related topics
2
150 - Psychology
2
174 - Occupational ethics
2
302 - Social interaction
2
330 - Economics
2
410 - Linguistics
2
570 - Life sciences; biology
2
600 - Technology
2
610 - Medicine & health
2
614 - Incidence & prevention of disease
2
004 - Data processing & computer science
1
005 - Computer programming, programs & data
1
006 - Special computer methods
1
140 - Specific philosophical schools
1
170 - Ethics
1
200 - Religion
1
301 - Sociology & anthropology
1
323 - Civil & political rights
1
325 - International migration & colonization
1
331 - Labor economics
1
337 - International economics
1
341 - Law of nations
1
more ...