(2001). American Headway 1: (Workbook). Oxford: Oxford University Press.
Čikaški stil citiranjaAmerican Headway 1: (Workbook). Oxford: Oxford University Press, 2001.
MLA način citiranjaAmerican Headway 1: (Workbook). Oxford: Oxford University Press, 2001.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.