Cita APA (7a ed.)

Butler, R. J. (1997). Sports psychology in performance. Butterworth-Heinemann.

Cita Chicago Style (17a ed.)

Butler, Richard J. Sports Psychology in Performance. Oxford [etc.]: Butterworth-Heinemann, 1997.

Cita MLA (9a ed.)

Butler, Richard J. Sports Psychology in Performance. Butterworth-Heinemann, 1997.