Hartwick, John M. The economics of natural resource use / John M. Hartwick and Nancy D. Olewiler - 2nd ed. - Massachusetts : Addison- Wesley, c1997. - ix,432 p. : ill. ; 23 cm. ISBN: 0321014286 LCCN: Subjects--Topical Terms: Natural resourcesEnvironmental policy LC Class. No.: HC59 / .H3558 1997 Dewey Class. No.: 333.713 / H337e