Kahn, James R. The economic approach to environmental and natural resources / Ja mes R. Kahn. - 3rd ed. - Mason, Ohio : Thomson/South-Western, c2005. - xviii, 638 p. : ill. ; 25 cm. Includes bibliographical references and indexes. ISBN: 0030314542 (hbk.) 032420275x LCCN: 2004-106716 Subjects--Topical Terms: Environmental economics.--------Natural resources.-------- Dewey Class. No.: 333.7