Classification
370 - Education
1,028
371 - Schools & their activities; special education
57
305 - Social groups
49
300 - Social sciences
40
361 - Social problems & social welfare in general
37
306 - Culture & institutions
33
320 - Political science
27
379 - Public policy issues in education
26
301 - Sociology & anthropology
21
378 - Higher education
17
330 - Economics
14
372 - Elementary education
14
374 - Adult education
14
158 - Applied psychology
11
150 - Psychology
9
302 - Social interaction
9
304 - Factors affecting social behavior
9
700 - The arts; fine & decorative arts
8
155 - Differential & developmental psychology
7
658 - General management
7
333 - Economics of land & energy
6
610 - Medicine & health
6
900 - History & geography
6
507 - Education, research & related topics
5
616 - Diseases
5
107 - Education, research & related topics
4
331 - Labor economics
4
363 - Other social problems & services
4
500 - Natural sciences & mathematics
4
510 - Mathematics
4
519 - Probabilities & applied mathematics
4
600 - Technology
4
780 - Music
4
809 - History, description & criticism
4
100 - Philosophy & psychology
3
303 - Social processes
3
338 - Production
3
001 - Knowledge
2
140 - Specific philosophical schools
2
362 - Social welfare problems & services
2
380 - Commerce, communications & transportation
2
520 - Astronomy & allied sciences
2
540 - Chemistry & allied sciences
2
570 - Life sciences; biology
2
577 - Ecology
2
613 - Personal health & safety
2
650 - Management & auxiliary services
2
910 - Geography & travel
2
972 - Middle America; Mexico
2
000 - Computer science, information & general works
1
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