Cita APA

Peters, P., & Peters, P. (2004). The cambridge guide to english usage. Cambridge, UK: Cambridge University Press.

Citación estilo Chicago

Peters, Pam, y Pam Peters. The Cambridge Guide to English Usage. Cambridge, UK: Cambridge University Press, 2004.

Cita MLA

Peters, Pam, y Pam Peters. The Cambridge Guide to English Usage. Cambridge, UK: Cambridge University Press, 2004.