Cita APA

Littlejohn, A., & Doff, A. (1993). Writing 3. Cambridge: Cambridge University Press.

Citación estilo Chicago

Littlejohn, Andrew, and Adrian Doff. Writing 3. Cambridge: Cambridge University Press, 1993.

Cita MLA

Littlejohn, Andrew, and Adrian Doff. Writing 3. Cambridge: Cambridge University Press, 1993.