Sahanaya W. Wendy & Lindeck J. Jeremy. (1997). IELTS. Preparation and Practice Listening and Speaking (2nd ed.). Oxford, Oxford University Press, 1997.
Čikaški stil citiranja (17. izdanje)Sahanaya W. Wendy i Lindeck J. Jeremy. IELTS. Preparation and Practice Listening and Speaking. 2nd ed. Oxford, Oxford University Press, 1997, 1997.
MLA način citiranja (9. izdanje)Sahanaya W. Wendy i Lindeck J. Jeremy. IELTS. Preparation and Practice Listening and Speaking. 2nd ed. Oxford, Oxford University Press, 1997, 1997.
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