Sarah Cunningham. (1999). Cutting edge: Student's Book. Harlow: Pearson Education.
Čikaški stil citiranjaSarah Cunningham. Cutting Edge: Student's Book. Harlow: Pearson Education, 1999.
MLA način citiranjaSarah Cunningham. Cutting Edge: Student's Book. Harlow: Pearson Education, 1999.
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