APA (7th ed.) Zitazioa

Duff, A. (1979). That's life. Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Duff, Alan. That's Life. Cambridge: Cambridge University Press, 1979.

MLA (9th ed.) Zitazioa

Duff, Alan. That's Life. Cambridge University Press, 1979.