the tools of screenwriting a writers guide to the craft and elements of a screenplay

MLA

Howard, David, and Edward Mabley. the Tools of Screenwriting: a Writers Guide to the Craft and Elements of a Screenplay. New York: St Martin's Griffin, 1993.

APA

Howard, D., & Mabley, E. (1993). the tools of screenwriting: a writers guide to the craft and elements of a screenplay. New York: St Martin's Griffin.

Chicago

Howard, David, and Edward Mabley. The Tools of Screenwriting: A Writers Guide to the Craft and Elements of a Screenplay. New York: St Martin's Griffin, 1993.