Hashemi L. Louise & Thomas B. Barbara. (2011). IELTS Trainer: Six practice tests with answers. Cambridge, Cambridge University Press, 2011.
Čikaški stil citiranja (17. izdanje)Hashemi L. Louise i Thomas B. Barbara. IELTS Trainer: Six Practice Tests with Answers. Cambridge, Cambridge University Press, 2011, 2011.
MLA način citiranja (9. izdanje)Hashemi L. Louise i Thomas B. Barbara. IELTS Trainer: Six Practice Tests with Answers. Cambridge, Cambridge University Press, 2011, 2011.
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