Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Thomson, Audrey Jean, y Agnes V. Martinet. A Practical English Grammar. 2nd. ed. Oxford [etc.]: University Press, 1969.

Cita MLA (9a ed.)

Thomson, Audrey Jean, y Agnes V. Martinet. A Practical English Grammar. 2nd. ed. University Press, 1969.