APA (7. basım) Alıntı

Portune, R. (1958). The old man and the sky. Barrie Books.

Chicago Style (17. basım) Atıf

Portune, Robert. The Old Man and the Sky. London: Barrie Books, 1958.

MLA (8th ed.) Atıf

Portune, Robert. The Old Man and the Sky. Barrie Books, 1958.