(2001). Learner English: A teacher's guide to interference and other problems. Cambridge, UK: Cambridge University Press.
استشهاد بنمط شيكاغوLearner English: A Teacher's Guide to Interference and Other Problems. Cambridge, UK: Cambridge University Press, 2001.
MLA استشهادLearner English: A Teacher's Guide to Interference and Other Problems. Cambridge, UK: Cambridge University Press, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.