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.
ציטוט MLAAllen, J. L. Environment 04/05. Twenty-third edition. Mcgraw-Hill/Dushkin, 2004.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.