APA (7th ed.) Citation

Eastwood, J.. (2005). Oxford learner's grammar [: Grammar checker. Oxford University Press.

Chicago Style (17th ed.) Citation

Eastwood, John. Oxford Learner's Grammar [: Grammar Checker. New York: Oxford University Press, 2005.

MLA (9th ed.) Citation

Eastwood, John. Oxford Learner's Grammar [: Grammar Checker. Oxford University Press, 2005.