(1994). Headway: Elementary (Student's book). Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoHeadway: Elementary (Student's Book). Oxford: Oxford University Press, 1994.
ציטוט MLAHeadway: Elementary (Student's Book). Oxford: Oxford University Press, 1994.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.