APA-viite (7. p.)
Hewings, M. (1999). Advanced English grammar: A self study reference and practice book for advanced South Asian students. Foundation Books ; Cambridge University Press.
Chicago-viite (17. p.)
Hewings, Martin. Advanced English Grammar: A Self Study Reference and Practice Book for Advanced South Asian Students. New Delhi : Cambridge: Foundation Books ; Cambridge University Press, 1999.
MLA-viite (9. p.)
Hewings, Martin. Advanced English Grammar: A Self Study Reference and Practice Book for Advanced South Asian Students. Foundation Books ; Cambridge University Press, 1999.
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