Gaya APA

Sorrenson, M. (2012). McGraw-Hill's IELTS: 5 Practice Tests (4 Academic Tests & 1 General Training Test) (+CD) . New York: McGraw-Hill Education.

Gaya MLA

Sorrenson, Monica. "McGraw-Hill's IELTS: 5 Practice Tests (4 Academic Tests & 1 General Training Test) (+CD)". New York: McGraw-Hill Education, 2012. Teks (Text).