Gaya APA

Mann, M., Taylore-Knowles, S. (2009). IELTS For Academic Purposes : 6 Practice Tests (Ed. 1). New York: Mcgraw Hill, Inc.

Gaya MLA

Mann, Malcom., Taylore-Knowles, Steve. "IELTS For Academic Purposes : 6 Practice Tests". Ed. 1 New York: Mcgraw Hill, Inc, 2009. Text.