301 - Sociology & anthropology 300
401 - Philosophy & theory 128
410 - Linguistics 67
155 - Differential & developmental psychology 39
412 - Etymology 38
001 - Knowledge 19
409 - Geographic & persons treatment 17
420 - English & Old English 16
400 - Language 15
300 - Social sciences 14
371 - Schools & their activities; special education 14
427 - English language variations 14
428 - Standard English usage 13
153 - Mental processes & intelligence 12
375 - Curricula 10
801 - Philosophy & theory 9
370 - Education 8
404 - Special topics 7
418 - Standard usage & applied linguistics 7
440 - Romance languages; French 6
808 - Rhetoric & collections of literature 6
149 - Other philosophical systems 5
150 - Psychology 5
152 - Perception, movement, emotions & drives 5
309 - [Unassigned] 4
372 - Elementary education 4
402 - Miscellany 4
415 - Grammar 4
417 - Dialectology & historical linguistics 4
430 - Germanic languages; German 4
491 - East Indo-European & Celtic languages 4
320 - Political science 3
419 - Sign languages 3
448 - Standard French usage 3
495 - Languages of East & Southeast Asia 3
809 - History, description & criticism 3
158 - Applied psychology 2
194 - Philosophy of France 2
323 - Civil & political rights 2
407 - Education, research & related topics 2
421 - English writing system & phonology 2
423 - English dictionaries 2
438 - Standard German usage 2
574 - [Unassigned] 2
659 - Advertising & public relations 2
704 - Special topics in fine & decorative arts 2
830 - Literatures of Germanic languages 2
943 - Central Europe; Germany 2
003 - Systems 1
070 - News media, journalism & publishing 1
071 - Newspapers in North America 1
121 - Epistemology 1
128 - Humankind 1
142 - Critical philosophy 1
200 - Religion 1
261 - Social theology 1
269 - Spiritual renewal 1
302 - Social interaction 1
329 - [Unassigned] 1
331 - Labor economics 1
354 - Administration of economy & environment 1
395 - Etiquette (Manners) 1
398 - Folklore 1
411 - Writing systems 1
437 - German language variations 1
439 - Other Germanic languages 1
442 - French etymology 1
443 - French dictionaries 1
447 - French language variations 1
462 - Spanish etymology 1
465 - Spanish grammar 1
496 - African languages 1
497 - North American native languages 1
617 - Surgery & related medical specialties 1
658 - General management 1
700 - The arts; fine & decorative arts 1
701 - Philosophy of fine & decorative arts 1
789 - (Optional number) 1
792 - Stage presentations 1
810 - American literature in English 1