Não informado. (1901). Physical training. Young Men's Christian Association.
Chicagoスタイル(17版)引用形式Não informado. Physical Training. New York: Young Men's Christian Association, 1901.
MLA(8版)引用形式Não informado. Physical Training. Young Men's Christian Association, 1901.
警告: この引用は必ずしも正確ではありません.