Gaya APA

Lougheed, L. (2021). BARRON'S: The Trusted Name in Test Prep (IELTS Essential Words) (Ed.4). Amerka Serikat: Kaplan North America.

Gaya MLA

Lougheed, Lin. "BARRON'S: The Trusted Name in Test Prep (IELTS Essential Words)". Ed.4 Amerka Serikat: Kaplan North America, 2021. Text.