Murphy, R. (2014). Basic grammar in use with answers: Self-study Reference and Practice for Students of North American English. Cambridge: Cambridge University Press.
Chicago-tyylinen lähdeviittausMurphy, Raymond. Basic Grammar in Use With Answers: Self-study Reference and Practice for Students of North American English. Cambridge: Cambridge University Press, 2014.
MLA-viiteMurphy, Raymond. Basic Grammar in Use With Answers: Self-study Reference and Practice for Students of North American English. Cambridge: Cambridge University Press, 2014.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.