Loungheed, L. (2011). Barron's IELTS: International English language testing system (2nd ed.). New Age Intenational.
Chicagoスタイル(17版)引用形式Loungheed, Lin. Barron's IELTS: International English Language Testing System. 2nd ed. New Delhi: New Age Intenational, 2011.
MLA(8版)引用形式Loungheed, Lin. Barron's IELTS: International English Language Testing System. 2nd ed. New Age Intenational, 2011.
警告: この引用は必ずしも正確ではありません.