APA (7th ed.) Citation

Swan & Walter. (1993). The new Cambridge english cource teacher 4 upper-intermediate. Cambridge University Press.

Chicago Style (17th ed.) Citation

Swan and Walter. The New Cambridge English Cource Teacher 4 Upper-intermediate. Cambridge: Cambridge University Press, 1993.

MLA (8th ed.) Citation

Swan and Walter. The New Cambridge English Cource Teacher 4 Upper-intermediate. Cambridge University Press, 1993.