APA (7th ed.) Citation

Swan, M., & Walter, C. (1987). The Cambridge English course: 2, Student's book (1st published, 6th printing.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Swan, Michael, and Catherine Walter. The Cambridge English Course: 2, Student's Book. 1st published, 6th printing. London [etc.]: Cambridge University Press, 1987.

MLA (9th ed.) Citation

Swan, Michael, and Catherine Walter. The Cambridge English Course: 2, Student's Book. 1st published, 6th printing. Cambridge University Press, 1987.