APA-Zitierstil (7. Ausg.)

Gardner, J. W. (1993). On leadership (First Free Press paperback edition.). Free Press.

Chicago-Zitierstil (17. Ausg.)

Gardner, John William. On Leadership. First Free Press paperback edition. New York: Free Press, 1993.

MLA-Zitierstil (9. Ausg.)

Gardner, John William. On Leadership. First Free Press paperback edition. Free Press, 1993.