na INLIS000000000038057 Ind 0010-0119002970 Environmental and natural resource economics WARD, Frank A. Frank A. Ward Colombus Prentice Hall 2006 xiii, 610 p. : ill. ; 26 cm xiii, 610 p. : ill. ; 26 cm 504WARe Incld 504 ENVIRONMENTAL POLICIES NATURAL RESOURCES 69/2007