Martens, R. (1990). Competitive anxiety in sport. Human Kinetics.
Chicago Style (17. basım) AtıfMartens, Rainer. Competitive Anxiety in Sport. Champaign, Ill: Human Kinetics, 1990.
MLA (9th ed.) AtıfMartens, Rainer. Competitive Anxiety in Sport. Human Kinetics, 1990.
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