APA (7th ed.) Zitazioa

Oates, S. B. (1982). Let the trumpet sound: A life of Martin Luther King, Jr. HarperPerennial.

Chicago Style (17th ed.) Zitazioa

Oates, Stephen B. Let the Trumpet Sound: A Life of Martin Luther King, Jr. New York: HarperPerennial, 1982.

MLA (9th ed.) Zitazioa

Oates, Stephen B. Let the Trumpet Sound: A Life of Martin Luther King, Jr. HarperPerennial, 1982.