Lougheed, L. (2013). Barron's IELTS: International English language testing system. New York: Barron's Educational Series.
シカゴスタイル引用形Lougheed, Lin. Barron's IELTS: International English Language Testing System. New York: Barron's Educational Series, 2013.
MLA引用形式Lougheed, Lin. Barron's IELTS: International English Language Testing System. New York: Barron's Educational Series, 2013.
警告: この引用は必ずしも正確ではありません.