APA aipamena

Ashton Sh. Sharon & Thomas B. Barbara. (2007). PET. Practice test Plus 2. Harlow, Longman, 2007.

Chicago Style aipamena

Ashton Sh. Sharon and Thomas B. Barbara. PET. Practice Test Plus 2. Harlow, Longman, 2007, 2007.

MLA aipamena

Ashton Sh. Sharon and Thomas B. Barbara. PET. Practice Test Plus 2. Harlow, Longman, 2007, 2007.

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