APA Citatie

Murphy , R. (1998). Essential english grammer: A self study reference and practice book for elementary students of english (2nd ed.). Cambridge University Press.

Chicago Style citaat

Murphy , 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 citatie

Murphy , Raymond. Essential English Grammer: A Self Study Reference and Practice Book for Elementary Students of English. 2nd ed. Cambridge University Press, 1998.