Cita APA (7a ed.)

Walters, L. (1993). Secrets of successful speakers. McGraw-Hill.

Cita Chicago Style (17a ed.)

Walters, Lilly. Secrets of Successful Speakers. New York: McGraw-Hill, 1993.

Cita MLA (8a ed.)

Walters, Lilly. Secrets of Successful Speakers. McGraw-Hill, 1993.