APA način citiranja

Beatty, K., Hopkins, A., & Potter, J. (2007). Secret Codes. England: Pearson Education Ltd.

Čikaški stil citiranja

Beatty, Ken, Andy Hopkins, i Jocelyn Potter. Secret Codes. England: Pearson Education Ltd, 2007.

MLA način citiranja

Beatty, Ken, Andy Hopkins, i Jocelyn Potter. Secret Codes. England: Pearson Education Ltd, 2007.

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