Pile, L. (2005). Market leader: Intermediate business English test file (2a. ed.). Pearson Education Limited.
芝加哥风格引文Pile, Louise. Market Leader: Intermediate Business English Test File. 2a. ed. Essex: Pearson Education Limited, 2005.
MLA引文Pile, Louise. Market Leader: Intermediate Business English Test File. 2a. ed. Pearson Education Limited, 2005.
警告：这些引文格式不一定是100％准确.