Cita APA (7a ed.)

Thomson, A. J., & Martinet, A. V. (1980). A Practical English grammar (3rd ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Thomson, A. J., y A. V. Martinet. A Practical English Grammar. 3rd ed. Oxford: Oxford University Press, 1980.

Cita MLA (9a ed.)

Thomson, A. J., y A. V. Martinet. A Practical English Grammar. 3rd ed. Oxford University Press, 1980.