Oxenden C. Clive, Latham-Koenig Ch. Christina, & Seligson P. Paul. (2011). New English File. Pre-Intermediate: Workbook. Oxford, Oxford University Press, 2011.
芝加哥风格引文Oxenden C. Clive, Latham-Koenig Ch. Christina, 与 Seligson P. Paul. New English File. Pre-Intermediate: Workbook. Oxford, Oxford University Press, 2011, 2011.
MLA引文Oxenden C. Clive, et al. New English File. Pre-Intermediate: Workbook. Oxford, Oxford University Press, 2011, 2011.
警告：这些引文格式不一定是100％准确.