Soars, J., & Soars, L. (2013). American Headway 4 (student practice): The world's most trusted English course. [Oxford]: Oxford University Press.
Trích dẫn kiểu ChicagoSoars, John, và Liz Soars. American Headway 4 (student Practice): The World's Most Trusted English Course. [Oxford]: Oxford University Press, 2013.
MLA CitationSoars, John, và Liz Soars. American Headway 4 (student Practice): The World's Most Trusted English Course. [Oxford]: Oxford University Press, 2013.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.