Style de citation APA (7e éd.)

Gardner, J. W. (1993). On leadership: With a preface to the paperback edition. Free Press.

Style de citation Chicago (17e éd.)

Gardner, John W. On Leadership: With a Preface to the Paperback Edition. New York: Free Press, 1993.

Style de citation MLA (8e éd.)

Gardner, John W. On Leadership: With a Preface to the Paperback Edition. Free Press, 1993.