O'Connor, J. R. (1981). Speech: Exploring communication. Prentice Hall.
Cita Chicago (17th ed.)O'Connor, J. Regis. Speech: Exploring Communication. Prentice Hall, 1981.
Cita MLA (9th ed.)O'Connor, J. Regis. Speech: Exploring Communication. Prentice Hall, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.