Murphy R. Raymond. (1997). Basic Grammar in USE: Answer Key (6th ed.). Cambridge, Cambridge University Press, 1997.
Chicago Style (17th ed.) CitationMurphy R. Raymond. Basic Grammar in USE: Answer Key. 6th ed. Cambridge, Cambridge University Press, 1997, 1997.
MLA (9th ed.) CitationMurphy R. Raymond. Basic Grammar in USE: Answer Key. 6th ed. Cambridge, Cambridge University Press, 1997, 1997.
Warning: These citations may not always be 100% accurate.