Beckmann, J., & Elbe, A. (2015). Sport psychological interventions in competitive sports. Newcastle upon Tyne, England: Cambridge Scholars Publishing.
Citación estilo ChicagoBeckmann, Jürgen,, and Anne-Marie Elbe. Sport Psychological Interventions in Competitive Sports. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2015.
Cita MLABeckmann, Jürgen,, and Anne-Marie Elbe. Sport Psychological Interventions in Competitive Sports. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2015.
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