Citazione Stile APA (7a Edizione)

Crystal, D., & Quirk, R. (1985). A Comprehensive grammar of the English language. Longman.

Citazione stile Chigago Style (17a edizione)

Crystal, David, e Randolph Quirk. A Comprehensive Grammar of the English Language. London: Longman, 1985.

Citatione MLA (9a ed.)

Crystal, David, e Randolph Quirk. A Comprehensive Grammar of the English Language. Longman, 1985.