APA (7e ed.) Bronvermelding

Ball, D. (2017). Backwards and forwards: A technical manual for reading plays. Southern Illinois University Press.

Chicago (17e ed.) Bronvermelding

Ball, David. Backwards and Forwards: A Technical Manual for Reading Plays. Carbondale: Southern Illinois University Press, 2017.

MLA (9e ed.) Bronvermelding

Ball, David. Backwards and Forwards: A Technical Manual for Reading Plays. Southern Illinois University Press, 2017.