00534nam a2200157 a 450000500170000000800410001710000260005824500940008425000120017826000370019030000250022750000450025265000280029770000240032585200270034920190520022420.0071002s19uu    xx            00    eng d10aCunnigham, William P.10aPrinciples of Environmental science :binquiry and applications /cWilliam P. Cunningham.  a3rd ed.0 aNew York :bMcGnaw Hill,cc2006.  axviii, 428 p. : ill.  aIncludes glossary, index and appendices.  aEnvironmental sciences.1 aCunnigham, Mary Ann  7OLOPSC5C&E Publishing