APA(7版)引用形式

Travis, P., & Harrison, L. (2013). Practice tests for IELTS. HarperCollins Publishers.

Chicagoスタイル(17版)引用形式

Travis, Peter, , L. Harrison. Practice Tests for IELTS. London: HarperCollins Publishers, 2013.

MLA(9版)引用形式

Travis, Peter, , L. Harrison. Practice Tests for IELTS. HarperCollins Publishers, 2013.

警告: この引用は必ずしも正確ではありません.