Cita APA

Richards, J. C. 1., & Sandy, C. (2008). Passages 1 (2. edition.). Cambridge: Cambridge University Press.

Citación estilo Chicago

Richards, Jack C. 1943-, y Chuck Sandy. Passages 1. 2. edition. Cambridge: Cambridge University Press, 2008.

Cita MLA

Richards, Jack C. 1943-, y Chuck Sandy. Passages 1. 2. edition. Cambridge: Cambridge University Press, 2008.