Murphy, R. (2003). Essential English grammar: A self-study reference and practice book for elementary students of english (2nd ed.). Cambridge Univ. Pr.
Chicago-viite (17. p.)Murphy, Raymond. Essential English Grammar: A Self-study Reference and Practice Book for Elementary Students of English. 2nd ed. Cambridge: Cambridge Univ. Pr, 2003.
MLA-viite (9. p.)Murphy, Raymond. Essential English Grammar: A Self-study Reference and Practice Book for Elementary Students of English. 2nd ed. Cambridge Univ. Pr, 2003.
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