Cita APA (7a ed.)

Murphy, R. (2007). Essential grammar in use: CD-ROM. Cambridge University Press.

Cita Chicago Style (17a ed.)

Murphy, Raymond. Essential Grammar in Use: CD-ROM. Cambridge: Cambridge University Press, 2007.

Cita MLA (9a ed.)

Murphy, Raymond. Essential Grammar in Use: CD-ROM. Cambridge University Press, 2007.