Classification
370 - Education
544
378 - Higher education
411
333 - Economics of land & energy
100
300 - Social sciences
97
320 - Political science
87
330 - Economics
84
900 - History & geography
76
600 - Technology
73
700 - The arts; fine & decorative arts
72
100 - Philosophy & psychology
60
371 - Schools & their activities; special education
56
306 - Culture & institutions
52
363 - Other social problems & services
48
379 - Public policy issues in education
47
610 - Medicine & health
41
658 - General management
37
400 - Language
36
620 - Engineering & allied operations
34
000 - Computer science, information & general works
31
380 - Commerce, communications & transportation
31
500 - Natural sciences & mathematics
30
140 - Specific philosophical schools
27
304 - Factors affecting social behavior
27
800 - Literature & rhetoric
22
374 - Adult education
18
410 - Linguistics
18
301 - Sociology & anthropology
16
418 - Standard usage & applied linguistics
16
338 - Production
15
340 - Law
14
551 - Geology, hydrology & meteorology
12
170 - Ethics
11
200 - Religion
11
160 - Logic
10
540 - Chemistry & allied sciences
8
576 - Genetics & evolution
8
302 - Social interaction
7
305 - Social groups
7
657 - Accounting
7
720 - Architecture
7
780 - Music
7
507 - Education, research & related topics
6
519 - Probabilities & applied mathematics
6
120 - Epistemology, causation & humankind
5
297 - Islam, Babism & Bahai Faith
5
303 - Social processes
5
361 - Social problems & social welfare in general
5
581 - Specific topics in natural history
5
616 - Diseases
5
630 - Agriculture & related technologies
5
more ...