Cita APA (7a ed.)

Thomson, A. J., & Martinet, A. V. (1986). A practical english grammar (4a. ed.). Oxford University.

Cita Chicago Style (17a ed.)

Thomson, A. J., y A. V. Martinet. A Practical English Grammar. 4a. ed. Oxford: Oxford University, 1986.

Cita MLA (9a ed.)

Thomson, A. J., y A. V. Martinet. A Practical English Grammar. 4a. ed. Oxford University, 1986.