APA (7th ed.) Citation

Swan & Walter. (2011). Oxford english grammar course: Basic. Oxford University Press.

Chicago Style (17th ed.) Citation

Swan and Walter. Oxford English Grammar Course: Basic. New York: Oxford University Press, 2011.

MLA (8th ed.) Citation

Swan and Walter. Oxford English Grammar Course: Basic. Oxford University Press, 2011.

Warning: These citations may not always be 100% accurate.