00833nam a2200217Ia 4500001001000000003001000010005001700020008004100037020001500078040000900093082002100102245009000123264003700213300002800250500014500278504005300423650002800476650003400504650004900538700002800587000001329MX-MdCICY20260521090120.0110520t1980    nyua   f f    0|0 | eng d  a0070452644  cCICY04aC 304.203bMc22m10aMcGraw-Hill encyclopedia of environmental science /cSybil P. Parker, editor in chief31aNew York :bMcGraw Hill, cc1980  a858 p. :bil. ;c29 cm.  aSome of the material in this volume has been published previously in the McGraw-Hill encyclopedia of science and technology, fourth edition.  aIncluye referencias bibliográficas e índices14aECOLOGIAvENCICLOPEDIAS14aMEDIO AMBIENTEvENCICLOPEDIAS14aPROTECCION DEL MEDIO AMBIENTEvENCICLOPEDIAS12aParker, Sybil P., eed.