Ball, D. (2017). Backwards and forwards: A technical manual for reading plays. Southern Illinois University Press.
Chicagoスタイル(17版)引用形式Ball, David. Backwards and Forwards: A Technical Manual for Reading Plays. Carbondale: Southern Illinois University Press, 2017.
MLA(9版)引用形式Ball, David. Backwards and Forwards: A Technical Manual for Reading Plays. Southern Illinois University Press, 2017.
警告: この引用は必ずしも正確ではありません.