Gaya APA

Lougheed, L. (ca 2000). Barron's IELTS : International English Language Testing System (Second Edition). Tangerang Selatan: Barron\'s.

Gaya MLA

Lougheed, Lin. "Barron's IELTS : International English Language Testing System". Second Edition Tangerang Selatan: Barron\'s, ca 2000. Text.