Smith, K., & Lewis, M. (2001). Pilates for abs (Standard format ; single sided.). Sony Music Entertainment.
Cita Chicago Style (17a ed.)Smith, Kathy, y Madeleine Lewis. Pilates for Abs. Standard format ; single sided. New York: Sony Music Entertainment, 2001.
Cita MLA (8a ed.)Smith, Kathy, y Madeleine Lewis. Pilates for Abs. Standard format ; single sided. Sony Music Entertainment, 2001.
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