Cita APA

RETTON, M. L., KAROLYI, B., & POWERS, J. (1986). Mary Lou: Creating an olympic champion. McGraw-Hill Book.

Citación estilo Chicago

RETTON, Mary Lou, Bela KAROLYI, and John POWERS. Mary Lou: Creating an Olympic Champion. New York: McGraw-Hill Book, 1986.

Cita MLA

RETTON, Mary Lou, et al. Mary Lou: Creating an Olympic Champion. McGraw-Hill Book, 1986.