Cita APA

Thomson, A. J. 1., & Martinet, A. V. 1. (1990). A practical English grammar (4th ed., 9th impression.). Oxford: Oxford University Press.

Citación estilo Chicago

Thomson, A. J. 1920-, and A. V. 1921- Martinet. A Practical English Grammar. 4th ed., 9th impression. Oxford: Oxford University Press, 1990.

Cita MLA

Thomson, A. J. 1920-, and A. V. 1921- Martinet. A Practical English Grammar. 4th ed., 9th impression. Oxford: Oxford University Press, 1990.