APA (7th ed.) Zitazioa
Allen, S. (1987). How to be funny: Discovering the comic you. McGraw-Hill.
Chicago Style (17th ed.) Zitazioa
Allen, Steve. How to Be Funny: Discovering the Comic You. New York: McGraw-Hill, 1987.
MLA (9th ed.) Zitazioa
Allen, Steve. How to Be Funny: Discovering the Comic You. McGraw-Hill, 1987.
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