Cita APA (7th ed.)

Sahanaya W. Wendy & Lindeck J. Jeremy. (1997). IELTS. Preparation and Practice Listening and Speaking (2nd ed.). Oxford, Oxford University Press, 1997.

Cita Chicago (17th ed.)

Sahanaya W. Wendy i Lindeck J. Jeremy. IELTS. Preparation and Practice Listening and Speaking. 2nd ed. Oxford, Oxford University Press, 1997, 1997.

Cita MLA (9th ed.)

Sahanaya W. Wendy i Lindeck J. Jeremy. IELTS. Preparation and Practice Listening and Speaking. 2nd ed. Oxford, Oxford University Press, 1997, 1997.