Classification
418 - Standard usage & applied linguistics
110
400 - Language
66
370 - Education
33
410 - Linguistics
27
407 - Education, research & related topics
17
430 - Germanic languages; German
14
700 - The arts; fine & decorative arts
11
100 - Philosophy & psychology
9
306 - Culture & institutions
8
401 - Philosophy & theory
8
800 - Literature & rhetoric
8
900 - History & geography
8
380 - Commerce, communications & transportation
7
600 - Technology
7
140 - Specific philosophical schools
5
333 - Economics of land & energy
5
404 - Special topics
5
000 - Computer science, information & general works
3
300 - Social sciences
3
301 - Sociology & anthropology
3
304 - Factors affecting social behavior
3
414 - Phonology & phonetics
3
440 - Romance languages; French
3
490 - Other languages
3
620 - Engineering & allied operations
3
320 - Political science
2
379 - Public policy issues in education
2
427 - English language variations
2
500 - Natural sciences & mathematics
2
610 - Medicine & health
2
808 - Rhetoric & collections of literature
2
006 - Special computer methods
1
170 - Ethics
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
330 - Economics
1
340 - Law
1
363 - Other social problems & services
1
374 - Adult education
1
375 - Curricula
1
378 - Higher education
1
415 - Grammar
1
422 - English etymology
1
428 - Standard English usage
1
475 - Classical Latin grammar
1
492 - Afro-Asiatic languages; Semitic languages
1
499 - Austronesian & other languages
1
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
more ...