Cita APA

Thomson, A. J., & Martinet, A. V. (1969). A practical English grammar (2d ed.). Oxford University Press.

Citación estilo Chicago

Thomson, A. J., y A. V. Martinet. A Practical English Grammar. 2d ed. London: Oxford University Press, 1969.

Cita MLA

Thomson, A. J., y A. V. Martinet. A Practical English Grammar. 2d ed. Oxford University Press, 1969.