00656nam a2200229Ia 4500001000700000003000500007005001700012008004100029020001500070035002000085050002000105082001400125100002800139245006200167250001100229260004500240300002900285500002000314504003000334650002500364650003700389193044BIBL20160527192052.0870508s1993    mx a     b    00110 spa    a9682417961  a(OCoLC)874000540 aGF37b.O53 19850 a304.221910aOndarza, Raul N.2Local13aEl impacto del hombre sobre la tierracRaúl N. Ondarza.  a3a ed.0 aMéxico, D.F.bEditorial Trillasc1993.  a177 p.bill. (some col.)  aIncludes index.  aBibliography: p. 1165166. 0aHuman ecology2Local 0aManxInfluence on nature.2Local