APA (7th ed.) Zitazioa

Chapman, L. (1974). English grammar and exercises: Book three. Longman.

Chicago Style (17th ed.) Zitazioa

Chapman, L.R.H. English Grammar and Exercises: Book Three. London: Longman, 1974.

MLA (9th ed.) Zitazioa

Chapman, L.R.H. English Grammar and Exercises: Book Three. Longman, 1974.