(2003). American headway 3: Student’s book.
Trích dẫn kiểu ChicagoAmerican Headway 3: Student’s Book. 2003.
MLA引文American Headway 3: Student’s Book. 2003.
警告：這些引文格式不一定是100％准確.
APA引文
(2003). American headway 3: Student’s book.
Trích dẫn kiểu ChicagoAmerican Headway 3: Student’s Book. 2003.
MLA引文American Headway 3: Student’s Book. 2003.