APA引文

(1989). Headway workbook: Advanced. Oxford: Oxford Univ. Press.

Trích dẫn kiểu Chicago

Headway Workbook: Advanced. Oxford: Oxford Univ. Press, 1989.

MLA引文

Headway Workbook: Advanced. Oxford: Oxford Univ. Press, 1989.

警告:這些引文格式不一定是100%准確.