Cita APA

Collie, J., & Slater, S. 1. (1991). Speaking 2. Cambridge: Cambridge University Press.

Citación estilo Chicago

Collie, Joanne, y Stephen 1947- Slater. Speaking 2. Cambridge: Cambridge University Press, 1991.

Cita MLA

Collie, Joanne, y Stephen 1947- Slater. Speaking 2. Cambridge: Cambridge University Press, 1991.