APA-referens

Hewings, M. (2008). Advanced grammer in use: A self-study reference and practice book for advanced learners of english with answers (2nd ed.). Cambridge university press.

Chicago-stil citat

Hewings, Martin. Advanced Grammer in Use: A Self-study Reference and Practice Book for Advanced Learners of English with Answers. 2nd ed. New Delhi: Cambridge university press, 2008.

MLA-referens

Hewings, Martin. Advanced Grammer in Use: A Self-study Reference and Practice Book for Advanced Learners of English with Answers. 2nd ed. Cambridge university press, 2008.