Cunningham, William P. Principles of environmental science : inquiry & applications / William P. Cunningham, Mary Ann Cunningham - 4th ed. - New York : McGrawHill, 2013 - xxiv, 399 p. : col. ill. ; 28 cm. Includes index ISBN: 9780071314947 Subjects--Topical Terms: Evironmental sciences Dewey Class. No.: 363.7 / CUN