Cita APA

Collie, J., & Slater, S. (1991). Speaking 1. New York: Cambridge University Press.

Citación estilo Chicago

Collie, Joanne, y Stephen Slater. Speaking 1. New York: Cambridge University Press, 1991.

Cita MLA

Collie, Joanne, y Stephen Slater. Speaking 1. New York: Cambridge University Press, 1991.