Gaya APA

Hagger, M., Nikos, I, C. (2005). **Social psychology of exercise and sport . New York: New York: Open University, 2005.

Gaya MLA

Hagger, Martin., Nikos, I., Chatzisarantis,. "**Social psychology of exercise and sport". New York: New York: Open University, 2005, 2005. Text.