APA (7th ed.) Citation

Thomson, A. J., & Martinet, A. V. (1972). A practical English grammar: Exercises. Oxford University Press.

Chicago Style (17th ed.) Citation

Thomson, Audrey Jean, and Agnes V. Martinet. A Practical English Grammar: Exercises. London: Oxford University Press, 1972.

MLA (9th ed.) Citation

Thomson, Audrey Jean, and Agnes V. Martinet. A Practical English Grammar: Exercises. Oxford University Press, 1972.