Cita APA (7th ed.)

Allen, S. (1987). How to be funny: Discovering the comic you. McGraw-Hill.

Cita Chicago (17th ed.)

Allen, Steve. How to Be Funny: Discovering the Comic You. New York: McGraw-Hill, 1987.

Cita MLA (9th ed.)

Allen, Steve. How to Be Funny: Discovering the Comic You. McGraw-Hill, 1987.