APA (7th ed.) Citation

Thomas, C. K. (1947). An introduction to the phonetics of American English. Ronald Press Co..

Chicago Style (17th ed.) Citation

Thomas, Charles Kenneth. An Introduction to the Phonetics of American English. New York: Ronald Press Co., 1947.

MLA (9th ed.) Citation

Thomas, Charles Kenneth. An Introduction to the Phonetics of American English. Ronald Press Co., 1947.