Gaya APA

LOUGHEED, L. (2016). BARRON'S IELTS PRACTICE EXAMS (TIDAK ADA). AMERICA: BARRON\'S EDUCATIONAL SERIES.

Gaya MLA

LOUGHEED, LIN. "BARRON'S IELTS PRACTICE EXAMS". TIDAK ADA AMERICA: BARRON\'S EDUCATIONAL SERIES, 2016. Text.