Cita APA (7th ed.)

Polk, W. R. (1957). Backdrop to tragedy: The struggle for Palestine. Beacon Press.

Cita Chicago (17th ed.)

Polk, William Roe. Backdrop to Tragedy: The Struggle for Palestine. Boston: Beacon Press, 1957.

Cita MLA (9th ed.)

Polk, William Roe. Backdrop to Tragedy: The Struggle for Palestine. Beacon Press, 1957.