Cita APA (7th ed.)
Hardison, O. B. (1966). Practical rhetoric. Appleton-Century-Crofts.
Cita Chicago (17th ed.)
Hardison, O. B. Practical Rhetoric. New York: Appleton-Century-Crofts, 1966.
Cita MLA (9th ed.)
Hardison, O. B. Practical Rhetoric. Appleton-Century-Crofts, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.