APA

Sahanaya W., Lindeck J., . (1997). IELTS. Preparation and Practice Listening and Speaking. Oxford: Oxford University Press.

Chicago

Sahanaya W, Lindeck J, . 1997. IELTS. Preparation and Practice Listening and Speaking. Oxford: Oxford University Press.

Harvard

Sahanaya W., Lindeck J., . (1997). IELTS. Preparation and Practice Listening and Speaking. Oxford: Oxford University Press.

MLA

Sahanaya W, Lindeck J, . IELTS. Preparation and Practice Listening and Speaking. Oxford: Oxford University Press. 1997.