(1986). Headway workbook: Intermediate. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoHeadway Workbook: Intermediate. Oxford: Oxford University Press, 1986.
MLA CitationHeadway Workbook: Intermediate. Oxford: Oxford University Press, 1986.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.