APA

Stevens L. A., . (1966). The ill-spoken word: the decline of speech in America. New York: McGraw-Hill.

Chicago

Stevens Leonard A, . 1966. The ill-spoken word: the decline of speech in America. New York: McGraw-Hill.

Harvard

Stevens L. A., . (1966). The ill-spoken word: the decline of speech in America. New York: McGraw-Hill.

MLA

Stevens Leonard A, . The ill-spoken word: the decline of speech in America. New York: McGraw-Hill. 1966.