Cita APA (7th ed.)

Thomson, A. J., & Martinet, A. V. (1984). A practical english grammar (3a. ed.). Oxford University Press.

Cita Chicago (17th ed.)

Thomson, A. J., i André V. Martinet. A Practical English Grammar. 3a. ed. Oxford: Oxford University Press, 1984.

Cita MLA (9th ed.)

Thomson, A. J., i André V. Martinet. A Practical English Grammar. 3a. ed. Oxford University Press, 1984.