Frederick, A., & Frederick, C. (2017). Stretch to win (Second edition.). Human Kinetics.
Cita Chicago Style (17a ed.)Frederick, Ann, y Chris Frederick. Stretch to Win. Second edition. Champaign, IL: Human Kinetics, 2017.
Cita MLA (8a ed.)Frederick, Ann, y Chris Frederick. Stretch to Win. Second edition. Human Kinetics, 2017.
Precaución: Estas citas no son 100% exactas.