Packard, W. (1987). The art of the playwright: Creating the magic of theatre. Paragon House Publishers.
Citazione stile Chigago Style (17a edizione)Packard, William. The Art of the Playwright: Creating the Magic of Theatre. New York: Paragon House Publishers, 1987.
Citatione MLA (9a ed.)Packard, William. The Art of the Playwright: Creating the Magic of Theatre. Paragon House Publishers, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.