Gaya APA

Butt, D, S. (New York: Van Nostra). The Psychology of Sport: the behaviorm motivation, personality and performance of athletes . New York: Van Nostrand Reinhol: New York: VAn Nostrand Reinhold Company; 1987.

Gaya MLA

Butt, Dorcas, Susan. "The Psychology of Sport: the behaviorm motivation, personality and performance of athletes". New York: Van Nostrand Reinhol: New York: VAn Nostrand Reinhold Company; 1987, New York: Van Nostra. Text.