Gaya APA

BARRON'S The Leader in Test Preparation: IELTS Practice Exams. (2013). New York: Barron\'s Educational Series, Inc..

Gaya MLA

BARRON'S The Leader in Test Preparation: IELTS Practice Exams. Ed. 2, Cet. 5. New York: Barron\'s Educational Series, Inc., 2013. Text.