Sölveborn, S. (1987). Stretching. Martínez Roca.
Tohutoru Kātū Chicago (17th ed.)Sölveborn, Sven-A. Stretching. Barcelona: Martínez Roca, 1987.
Tohutoro MLA (9th ed.)Sölveborn, Sven-A. Stretching. Martínez Roca, 1987.
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