Παραπομπή APA

Smith, R. E., & Smoll, F. L. (1978). Psychological perspectives in youth sports. Hemisphere.

Παραπομπή Chicago Style

Smith, Ronald E., και Frank L. Smoll. Psychological Perspectives in Youth Sports. Washington: Hemisphere, 1978.

Παραπομπή MLA

Smith, Ronald E., και Frank L. Smoll. Psychological Perspectives in Youth Sports. Hemisphere, 1978.