Swan, M., & Baker, D. (2008). Grammar scan answer key (Third edition.). Oxford University Press.
Chicago Style (17. basım) AtıfSwan, Michael, ve David Baker. Grammar Scan Answer Key. Third edition. New York: Oxford University Press, 2008.
MLA (9th ed.) AtıfSwan, Michael, ve David Baker. Grammar Scan Answer Key. Third edition. Oxford University Press, 2008.
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