Swan, M., & Walter, C. (2011). Oxford English grammar course: Intermediate ; a grammar practice book for intermediate and upper-intermediate students of English ; with answers (1. publ.). Oxford Univ. Press.
Chicago Style (17th ed.) CitationSwan, Michael, and Catherine Walter. Oxford English Grammar Course: Intermediate ; a Grammar Practice Book for Intermediate and Upper-intermediate Students of English ; with Answers. 1. publ. Oxford [u.a.]: Oxford Univ. Press, 2011.
MLA (9th ed.) CitationSwan, Michael, and Catherine Walter. Oxford English Grammar Course: Intermediate ; a Grammar Practice Book for Intermediate and Upper-intermediate Students of English ; with Answers. 1. publ. Oxford Univ. Press, 2011.
Warning: These citations may not always be 100% accurate.