Loken, N. C., & Willoughby, R. J. Complete book of gymnastics.
Chicagoスタイル(17版)引用形式Loken, Newton C., , Robert J. Willoughby. Complete Book of Gymnastics.
MLA(8版)引用形式Loken, Newton C., , Robert J. Willoughby. Complete Book of Gymnastics.
警告: この引用は必ずしも正確ではありません.