Allen, J. L. (2004). Environment 04/05 (Twenty-third edition.). Mcgraw-Hill/Dushkin.
Chicago Style (17th ed.) CitationAllen, J. L. Environment 04/05. Twenty-third edition. Dubuque, Iowa: Mcgraw-Hill/Dushkin, 2004.
MLA (9th ed.) CitationAllen, J. L. Environment 04/05. Twenty-third edition. Mcgraw-Hill/Dushkin, 2004.
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