APA (7th ed.) Citation

Thomson, A. (1966). A practical english grammar exercises-4 Vol 4. O.U.P.

Chicago Style (17th ed.) Citation

Thomson, A. A Practical English Grammar Exercises-4 Vol 4. London: O.U.P, 1966.

MLA (9th ed.) Citation

Thomson, A. A Practical English Grammar Exercises-4 Vol 4. O.U.P, 1966.