Jeffreys, S. (2019). Playwriting: Structure, character, how and what to write. Nick Hern Books.
Chicago-referens (17:e uppl.)Jeffreys, Stephen. Playwriting: Structure, Character, How and What to Write. London: Nick Hern Books, 2019.
MLA-referens (9:e uppl.)Jeffreys, Stephen. Playwriting: Structure, Character, How and What to Write. Nick Hern Books, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.