00744nam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093100003100102245008600133260005200219300001900271490007100290650002700361650004000388650002700428830007100455CHAP20220817042843.0971013s1969            r     00010     d  a57812  a58784  a62940  cCHAP00aSpaulding, Willard M., Jr.  aEffects of surface mining on the fish and wildlife resources of the United States  aWashington :bGovernment Printing Office,c1969  a51 p.b: ilus.  aBureau of Sport Fisheries and Wildlife. Resource publicationv; 6814aAguaxContaminación.14aRecursos naturalesxConservación.14aResíduos químicos.0 aBureau of Sport Fisheries and Wildlife. Resource publicationv; 68