APA-referens (7:e uppl.)

Grass, G., & Manheim, R. (1969). Speak out: Speeches, open letters, commentaries. Harcourt.

Chicago-referens (17:e uppl.)

Grass, Gunter, och Ralph Manheim. Speak Out: Speeches, Open Letters, Commentaries. New York: Harcourt, 1969.

MLA-referens (9:e uppl.)

Grass, Gunter, och Ralph Manheim. Speak Out: Speeches, Open Letters, Commentaries. Harcourt, 1969.