APA (7th ed.) Citation
Murphy, R. (1990). Essential grammar in use: A self study reference and practice book for elementary students of English: with answers. Cambridge University press.
Chicago Style (17th ed.) Citation
Murphy, Raymond. Essential Grammar in Use: A Self Study Reference and Practice Book for Elementary Students of English: With Answers. Cambridge: Cambridge University press, 1990.
MLA (9th ed.) Citation
Murphy, Raymond. Essential Grammar in Use: A Self Study Reference and Practice Book for Elementary Students of English: With Answers. Cambridge University press, 1990.
Warning: These citations may not always be 100% accurate.