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