APA Citatie

Swan, M., & Walter, C. (1997). The New Cambridge English Course IV: Upper- Intermediate. New York: Cambridge University Press.

Chicago Style citaat

Swan, Michael, en Catherine Walter. The New Cambridge English Course IV: Upper- Intermediate. New York: Cambridge University Press, 1997.

MLA citatie

Swan, Michael, en Catherine Walter. The New Cambridge English Course IV: Upper- Intermediate. New York: Cambridge University Press, 1997.