Douglas, D. (2010). Understanding language testing. Hodder Education.
Chicagoスタイル(17版)引用形式Douglas, Dan. Understanding Language Testing. London: Hodder Education, 2010.
MLA(8版)引用形式Douglas, Dan. Understanding Language Testing. Hodder Education, 2010.
警告: この引用は必ずしも正確ではありません.