Collins Cobuild. (1989). English learner's dictionary. London: Collins publishers.
Trích dẫn kiểu ChicagoCollins Cobuild. English Learner's Dictionary. London: Collins publishers, 1989.
ציטוט MLACollins Cobuild. English Learner's Dictionary. London: Collins publishers, 1989.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.