Style de citation APA (7e éd.)

Powers, J. H. (1987). Public speaking: The lively art. Wadsworth Pub.

Style de citation Chicago (17e éd.)

Powers, John H. Public Speaking: The Lively Art. Belmont, Calif: Wadsworth Pub, 1987.

Style de citation MLA (9e éd.)

Powers, John H. Public Speaking: The Lively Art. Wadsworth Pub, 1987.