Allen, J. L. (2004). Environment 04/05 (Twenty-third edition.). Mcgraw-Hill/Dushkin.
芝加哥风格引文Allen, J. L. Environment 04/05. Twenty-third edition. Dubuque, Iowa: Mcgraw-Hill/Dushkin, 2004.
MLA引文Allen, J. L. Environment 04/05. Twenty-third edition. Mcgraw-Hill/Dushkin, 2004.
警告：这些引文格式不一定是100％准确.