Gaya APA

Eichstedt, C, B., Lavay, B, W. (1992). Physical activity for individuals with mental retardation : infancy through adulthood . Champaign: Human Kinetics.

Gaya MLA

Eichstedt, Carl, B.., Lavay, Barry, W.. "Physical activity for individuals with mental retardation : infancy through adulthood". Champaign: Human Kinetics, 1992. Text.