Cita APA

Cambridge University Press. (2007). Cambridge first certificate in English 7 [CD-ROM]. New York: Cambridge University Press.

Citación estilo Chicago

Cambridge University Press. Cambridge First Certificate in English 7 [CD-ROM]. New York: Cambridge University Press, 2007.

Cita MLA

Cambridge University Press. Cambridge First Certificate in English 7 [CD-ROM]. New York: Cambridge University Press, 2007.