Swan, M., & Walter, C. (1989). The Cambridge English course: Teacher's book 2. Cambridge University Press.
Chicago Style (17th ed.) CitationSwan, Michael, and Catherine Walter. The Cambridge English Course: Teacher's Book 2. Cambridge: Cambridge University Press, 1989.
MLA (9th ed.) CitationSwan, Michael, and Catherine Walter. The Cambridge English Course: Teacher's Book 2. Cambridge University Press, 1989.