APA-referens (7:e uppl.)

Downs, W. M., & Wright, L. A. (1998). Playwriting from formula to form: A guide to writing a play. Harcourt Brace College Publishers.

Chicago-referens (17:e uppl.)

Downs, William Missouri, och Lou Anne Wright. Playwriting from Formula to Form: A Guide to Writing a Play. Forth Worth, Tex: Harcourt Brace College Publishers, 1998.

MLA-referens (9:e uppl.)

Downs, William Missouri, och Lou Anne Wright. Playwriting from Formula to Form: A Guide to Writing a Play. Harcourt Brace College Publishers, 1998.