Cita APA (7a ed.)

Steinbeck, J. (1975). Viva Zapata!: The original screenplay. Viking Press.

Cita Chicago Style (17a ed.)

Steinbeck, John. Viva Zapata!: The Original Screenplay. New York: Viking Press, 1975.

Cita MLA (8a ed.)

Steinbeck, John. Viva Zapata!: The Original Screenplay. Viking Press, 1975.