Howard, D., & Mabley, E. (1993). The tools of screenwriting: A writer's guide to the craft and elements of a screenplay. St. Martin's Press.
Chicago-referens (17:e uppl.)Howard, David, och Edward Mabley. The Tools of Screenwriting: A Writer's Guide to the Craft and Elements of a Screenplay. New York: St. Martin's Press, 1993.
MLA-referens (8:e uppl.)Howard, David, och Edward Mabley. The Tools of Screenwriting: A Writer's Guide to the Craft and Elements of a Screenplay. St. Martin's Press, 1993.
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