APA (7th ed.) Zitazioa

Quirk, T. (2007). Mark Twain and human nature. University of Missouri Press.

Chicago Style (17th ed.) Zitazioa

Quirk, Tom. Mark Twain and Human Nature. Columbia: University of Missouri Press, 2007.

MLA (9th ed.) Zitazioa

Quirk, Tom. Mark Twain and Human Nature. University of Missouri Press, 2007.