Gaya APA

Mann, M., Taylore-Knowles, S. (2009). IELTS for or academic puposes : A short intensive course (Cet. 1). USA: MC Graw Hill.

Gaya MLA

Mann, Malcom., Taylore-Knowles, Steve. "IELTS for or academic puposes : A short intensive course". Cet. 1 USA: MC Graw Hill, 2009. Text.