APA

McKeown A., Wright R. & Cambridge University Press. (2011). Professional English in use. Cambridge: Cambridge University Press.

Chicago

McKeown Arthur, Wright Ros and Cambridge University Press. 2011. Professional English in use. Cambridge: Cambridge University Press.

Harvard

McKeown A., Wright R. and Cambridge University Press. (2011). Professional English in use. Cambridge: Cambridge University Press.

MLA

McKeown Arthur, Wright Ros and Cambridge University Press. Professional English in use. Cambridge: Cambridge University Press. 2011.