Cita APA (7a ed.)

West M. A., A. S. (1957). The revised English Grammar for beginnres. Cambridge.

Cita Chicago Style (17a ed.)

West M. A., Alfred S. The Revised English Grammar for Beginnres. Gran Bretaña: Cambridge, 1957.

Cita MLA (9a ed.)

West M. A., Alfred S. The Revised English Grammar for Beginnres. Cambridge, 1957.