Style de citation APA (7e éd.)

Hart, R. P. (1987). The sound of leadership: Presidential communication in the modern age. University of Chicago Press.

Style de citation Chicago (17e éd.)

Hart, Roderick P. The Sound of Leadership: Presidential Communication in the Modern Age. Chicago: University of Chicago Press, 1987.

Style de citation MLA (9e éd.)

Hart, Roderick P. The Sound of Leadership: Presidential Communication in the Modern Age. University of Chicago Press, 1987.