APA (7th ed.) Citation

Howard, D., & Mabley, E. -. (1993). The tools of screenwriting: A writer's guide to the craft and elements of a screenplay (1. ed.). St. Martin's pr.

Chicago Style (17th ed.) Citation

Howard, David, and Edward -1984 Mabley. The Tools of Screenwriting: A Writer's Guide to the Craft and Elements of a Screenplay. 1. ed. New York, N.Y: St. Martin's pr, 1993.

MLA (9th ed.) Citation

Howard, David, and Edward -1984 Mabley. The Tools of Screenwriting: A Writer's Guide to the Craft and Elements of a Screenplay. 1. ed. St. Martin's pr, 1993.