Cita APA

Thomson, A. J., & Martinet, A. V. A Practical English grammar / A. J. Thomson, A. V. Martinet (4.). New York : Oxford University Press.

Citación estilo Chicago

Thomson, A. J., y A. V. Martinet. A Practical English Grammar / A. J. Thomson, A. V. Martinet. 4. New York : Oxford University Press.

Cita MLA

Thomson, A. J., y A. V. Martinet. A Practical English Grammar / A. J. Thomson, A. V. Martinet. 4. New York : Oxford University Press.