00505nam a2200169Ia 4500008004100000040001900041041001200060082003200072100001500104245003900119260003600158300006000194504002200254650001200276651002600288850002100314131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a577/301.31/KHAbLCLIB/41622  aKhan, T.N.  aEnvironmental Sciencecby T.N.Khan  aCalcuttabB.M.Publicationc2000  axvi, 428 p.b ill., fig., photos, maps, tablesc 23 cm.  aIncludes appendix  aEcology  aEnvironmental science  aLCLIB/301.31/KHA