Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Thomson, Audrey Jean, y Agnes V. Martinet. A Practical English Grammar for Foreign Students: Exercises. London: Oxford University Press, 1972.

Cita MLA (9a ed.)

Thomson, Audrey Jean, y Agnes V. Martinet. A Practical English Grammar for Foreign Students: Exercises. Oxford University Press, 1972.