Cita APA (7a ed.)

McCullough, C., & Ward, A. (1995). The thorn Birds. Penguin Books.

Cita Chicago Style (17a ed.)

McCullough, Colleen, y Ann Ward. The Thorn Birds. London: Penguin Books, 1995.

Cita MLA (9a ed.)

McCullough, Colleen, y Ann Ward. The Thorn Birds. Penguin Books, 1995.