Dellar, H., & Walkley, A. (2010). Pre-intermediate outcomes: Class audio CDs. Heinle Cengage Learning.
Chicagoスタイル(17版)引用形式Dellar, Hugh, , Andrew Walkley. Pre-intermediate Outcomes: Class Audio CDs. Hampshire: Heinle Cengage Learning, 2010.
MLA(9版)引用形式Dellar, Hugh, , Andrew Walkley. Pre-intermediate Outcomes: Class Audio CDs. Heinle Cengage Learning, 2010.
警告: この引用は必ずしも正確ではありません.