Greenbaum, S., & Quirk, R. (1990). A student's grammar of the english language. Longman.
Citación estilo ChicagoGreenbaum, Sidney, and Randolph Quirk. A Student's Grammar of the English Language. Londres: Longman, 1990.
Cita MLAGreenbaum, Sidney, and Randolph Quirk. A Student's Grammar of the English Language. Longman, 1990.
Warning: These citations may not always be 100% accurate.