00620nam a2200217Ia 450000500170000000800410001702000140005804000190007204100120009108200160010310000170011924500870013626000420022330000140026550400500027963000120032963000150034165000200035665100160037685000100039220180621145805.0131103s9999    xx            000 0 und d  a471946346  aLoreto College  aEnglish  a304.28bHAS  aHaslam, S.M.  aRiver Pollutionb An ecological perspective cS.M. Haslam. Illustrated by Y. Bower  aChichesterbJohn Wiley and Sonsc1992  axii,253p   aIncludes bibliographical references and index  aEcology  aPollution   aRiver Pollution  aEnvironment  aLCLIB