ENGER, Eldon.D Environmental Science A study of Interrelationships English Eldon D. Enger and Bradley F. Smith - 12th ed - New York Mc Graw.Hill 2008 - 485p ill., photos, pictures 27cm ISBN: 978-0-07-017166-4 Subjects--Topical Terms: Dewey Class. No.: 363.7 ENG