00381nam a2200145Ia 4500003000600000005001700006008004100023020001500064040004900079082001700128100002100145245002600166260002300192500002000215NORSU20240813014748.0240220s9999    xx            000 0 und d  a0071169962  aNORSU Dumaguete (Main Campus ll)cNORSU-MCII  a628 En3 2000  aEnger,  Eldon D. 0aEnvironmental science  bMcGraw-Hillcc2000  aIncludes index.