Ammons, R. B. (1949). Motor skills research exchange. s.n.].
Chicagoスタイル(17版)引用形式Ammons, Robert B. Motor Skills Research Exchange. [S.l.: s.n.], 1949.
MLA(8版)引用形式Ammons, Robert B. Motor Skills Research Exchange. s.n.], 1949.
警告: この引用は必ずしも正確ではありません.