Ball, D. (2017). Backwards and forwards: A technical manual for reading plays. Southern Illinois University Press.
Lua i Stíl Chicago (17ú heag.)Ball, David. Backwards and Forwards: A Technical Manual for Reading Plays. Carbondale: Southern Illinois University Press, 2017.
Lua MLA (9ú heag.)Ball, David. Backwards and Forwards: A Technical Manual for Reading Plays. Southern Illinois University Press, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.