Cita APA

Graver, B. (1996). Advanced english practice (3a. ed.). Oxford: Oxford University Press.

Citación estilo Chicago

Graver, B.D. Advanced English Practice. 3a. ed. Oxford: Oxford University Press, 1996.

Cita MLA

Graver, B.D. Advanced English Practice. 3a. ed. Oxford: Oxford University Press, 1996.