Cita APA (7th ed.)

Wills, G. (1994). Certain trumpets: The call of leaders. Simon & Schuster.

Cita Chicago (17th ed.)

Wills, Garry. Certain Trumpets: The Call of Leaders. New York: Simon & Schuster, 1994.

Cita MLA (9th ed.)

Wills, Garry. Certain Trumpets: The Call of Leaders. Simon & Schuster, 1994.