Williams, I., & Curley, D. (2002). Green light: Student book. New York: McGraw-Hill.
Čikaški stil citiranjaWilliams, Ivor, i Dermot Curley. Green Light: Student Book. New York: McGraw-Hill, 2002.
MLA način citiranjaWilliams, Ivor, i Dermot Curley. Green Light: Student Book. New York: McGraw-Hill, 2002.
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