Gerson, R. (2004). Headcoaching: Mental training for peak performance. [Bloomington, IN]: 1st Books Library.
Chicago Stili AlıntıGerson, Richard. Headcoaching: Mental Training for Peak Performance. [Bloomington, IN]: 1st Books Library, 2004.
MLA AlıntıGerson, Richard. Headcoaching: Mental Training for Peak Performance. [Bloomington, IN]: 1st Books Library, 2004.
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