Gaya APA

Bahrke, M, S., E, I, Y, C. (2002). Performance enhancing substances in sport and exercise . New York: New York: Human Kinetics, 2002.

Gaya MLA

Bahrke, Michael, S., E, I., Yesalis,, Charles. "Performance enhancing substances in sport and exercise". New York: New York: Human Kinetics, 2002, 2002. .