APA-referens (7:e uppl.)

Swan, M., & Baker, D. (2008). Grammar scan answer key (Third edition.). Oxford University Press.

Chicago-referens (17:e uppl.)

Swan, Michael, och David Baker. Grammar Scan Answer Key. Third edition. New York: Oxford University Press, 2008.

MLA-referens (9:e uppl.)

Swan, Michael, och David Baker. Grammar Scan Answer Key. Third edition. Oxford University Press, 2008.