Smith, R. E., & Smoll, F. L. (1978). Psychological perspectives in youth sports. Hemisphere.
Dyfyniad Arddull ChicagoSmith, Ronald E., and Frank L. Smoll. Psychological Perspectives in Youth Sports. Washington: Hemisphere, 1978.
Dyfyniad MLASmith, Ronald E., and Frank L. Smoll. Psychological Perspectives in Youth Sports. Hemisphere, 1978.
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