Blackwell, A., Manin, G. J., & Naber, T. (2003). English knowhow: Student book 1. New York: Oxford University Press.
Čikaški stil citiranjaBlackwell, Angela, Gregory J. Manin, i Therese Naber. English Knowhow: Student Book 1. New York: Oxford University Press, 2003.
MLA način citiranjaBlackwell, Angela, Gregory J. Manin, i Therese Naber. English Knowhow: Student Book 1. New York: Oxford University Press, 2003.
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