(1997). Life line Pre- inter: Student’s book.
Trích dẫn kiểu ChicagoLife Line Pre- Inter: Student’s Book. 1997.
MLA引文Life Line Pre- Inter: Student’s Book. 1997.
警告：這些引文格式不一定是100％准確.
APA引文
(1997). Life line Pre- inter: Student’s book.
Trích dẫn kiểu ChicagoLife Line Pre- Inter: Student’s Book. 1997.
MLA引文Life Line Pre- Inter: Student’s Book. 1997.