Style de citation APA (7e éd.)

Hersey, J. (1970). Letter to the alumni ([1st ed.].). Knopf.

Style de citation Chicago (17e éd.)

Hersey, John. Letter to the Alumni. [1st ed.]. New York: Knopf, 1970.

Style de citation MLA (8e éd.)

Hersey, John. Letter to the Alumni. [1st ed.]. Knopf, 1970.