Dellar, H., & Walkley, A. (2010). Upper intermediate outcomes: Student´s book. Heinle, Cengage Learning EMEA.
芝加哥风格引文Dellar, Hugh, 与 Andrew Walkley. Upper Intermediate Outcomes: Student´s Book. Hampshire: Heinle, Cengage Learning EMEA, 2010.
MLA引文Dellar, Hugh, 与 Andrew Walkley. Upper Intermediate Outcomes: Student´s Book. Heinle, Cengage Learning EMEA, 2010.
警告：这些引文格式不一定是100％准确.