APA Citation

Quirk, R., & Crystal, D. (2005). A comprehensive grammar of the english language. London: Longman.

Chicago Style Citation

Quirk, Randolph, and David Crystal. A Comprehensive Grammar of the English Language. London: Longman, 2005.

MLA Citation

Quirk, Randolph, and David Crystal. A Comprehensive Grammar of the English Language. London: Longman, 2005.

Warning: These citations may not always be 100% accurate.