Kuhn, E. G. (1938). The pronunciation of vowel sounds: An evaluation of practice material for college freshmen. Teachers college, Columbia university.
Chicago Style (17th ed.) CitationKuhn, Effie Georgine. The Pronunciation of Vowel Sounds: An Evaluation of Practice Material for College Freshmen. New York city: Teachers college, Columbia university, 1938.
MLA (9th ed.) CitationKuhn, Effie Georgine. The Pronunciation of Vowel Sounds: An Evaluation of Practice Material for College Freshmen. Teachers college, Columbia university, 1938.
Warning: These citations may not always be 100% accurate.