APA način citiranja

(2006). Cambridge exams extra PET with answers. Cambridge, UK: Cambidge University Press.

Čikaški stil citiranja

Cambridge Exams Extra PET With Answers. Cambridge, UK: Cambidge University Press, 2006.

MLA način citiranja

Cambridge Exams Extra PET With Answers. Cambridge, UK: Cambidge University Press, 2006.

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