Gwathmey, J. T. (1915). Tumbling for amateurs. American Sports Pub. Co.
Chicagoスタイル(17版)引用形式Gwathmey, James Tayloe. Tumbling for Amateurs. New York: American Sports Pub. Co, 1915.
MLA(8版)引用形式Gwathmey, James Tayloe. Tumbling for Amateurs. American Sports Pub. Co, 1915.
警告: この引用は必ずしも正確ではありません.