Ackert, P., & Lee, L. (2005). Cause & effect (4th ed.). Thomson/Heinle.
芝加哥风格引文Ackert, Patricia, 与 Linda Lee. Cause & Effect. 4th ed. Boston: Thomson/Heinle, 2005.
MLA引文Ackert, Patricia, 与 Linda Lee. Cause & Effect. 4th ed. Thomson/Heinle, 2005.
警告：这些引文格式不一定是100％准确.