Murphy , R. (1998). Essential english grammer: A self study reference and practice book for elementary students of english (2nd ed.). Cambridge University Press.
استشهاد بنمط شيكاغوMurphy , Raymond. Essential English Grammer: A Self Study Reference and Practice Book for Elementary Students of English. 2nd ed. New Delhi: Cambridge University Press, 1998.
MLA استشهادMurphy , Raymond. Essential English Grammer: A Self Study Reference and Practice Book for Elementary Students of English. 2nd ed. Cambridge University Press, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.