Thomson, A. J., & Martinet, A. V. (1986). A practical English grammar (4th ed. (rev. and updated).). Oxford University Press.

Thomson, A. J., and A. V. Martinet. A Practical English Grammar. 4th ed. (rev. and updated). Oxford [England] ; New York ; New Delhi: Oxford University Press, 1986.

Thomson, A. J., and A. V. Martinet. A Practical English Grammar. 4th ed. (rev. and updated). Oxford University Press, 1986.