Enger, Eldon D. Environmental science : a study of interrelationships / - Ninth edition Eldon D. Enger, Bradley F. Smith. - c2004. - 1 volume (various pagings) : color illustration ; 29 cm. Includes bibliographical references (p. C-3) and index. ISBN: 0072440007 (acidfree paper) 9780071242806 LCCN: 2002075341 Subjects--Topical Terms: Environmental sciences. LC Class. No.: GE105 / .E54 2004 Dewey Class. No.: 363.7