Murphy, R. (1990). English Grammar in Use: A Self-Study Reference and Practice Book for Intermediate Students. New York: Cambridge University Press.
Chicago-tyylinen lähdeviittausMurphy, Raymond. English Grammar in Use: A Self-Study Reference and Practice Book for Intermediate Students. New York: Cambridge University Press, 1990.
MLA-viiteMurphy, Raymond. English Grammar in Use: A Self-Study Reference and Practice Book for Intermediate Students. New York: Cambridge University Press, 1990.
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