Sue O'Connell. (2000). Cambridge first certificate: Listening and speaking. Cambridge, UK: Cambridge Unversity Press.
استشهاد بنمط شيكاغوSue O'Connell. Cambridge First Certificate: Listening and Speaking. Cambridge, UK: Cambridge Unversity Press, 2000.
MLA استشهادSue O'Connell. Cambridge First Certificate: Listening and Speaking. Cambridge, UK: Cambridge Unversity Press, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.