Cita APA

Thomson, A. J., & Martinet, A. V. (1986). A practical english grammar. Oxford: Oxford University Press.

Citación estilo Chicago

Thomson, A. J., and A. V. Martinet. A Practical English Grammar. Oxford: Oxford University Press, 1986.

Cita MLA

Thomson, A. J., and A. V. Martinet. A Practical English Grammar. Oxford: Oxford University Press, 1986.