APA Citation

(1990). Headway: Advanced (Student's book). Oxford: Oxford Univ. Press.

Trích dẫn kiểu Chicago

Headway: Advanced (Student's Book). Oxford: Oxford Univ. Press, 1990.

MLA Citation

Headway: Advanced (Student's Book). Oxford: Oxford Univ. Press, 1990.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.