West, W. D. (1942). The gymnast's manual: Nomenclature, descriptions, and combinations for the heavy apparatus. Prentice-Hall, inc.
Cita Chicago (17th ed.)West, Wilbur D. The Gymnast's Manual: Nomenclature, Descriptions, and Combinations for the Heavy Apparatus. New York: Prentice-Hall, inc, 1942.
Cita MLA (9th ed.)West, Wilbur D. The Gymnast's Manual: Nomenclature, Descriptions, and Combinations for the Heavy Apparatus. Prentice-Hall, inc, 1942.
Atenció: Aquestes cites poden no estar 100% correctes.