APA (7th ed.) Citation

Eastwood, J. (1984). A basic English grammar exercises with key. Oxford University Press.

Chicago Style (17th ed.) Citation

Eastwood, John. A Basic English Grammar Exercises with Key. Oxford: Oxford University Press, 1984.

MLA (9th ed.) Citation

Eastwood, John. A Basic English Grammar Exercises with Key. Oxford University Press, 1984.