00322nam a2200109Ia 4500008004100000082002300041100002100064245007300085250000900158260003600167300000900203240913s9999||||xx |||||||||||||| ||und||  aGS    553.7  MAN/P  aBy N Manivasakan 0aPhysico chemical examination of water sewage of industrial effluents  aNULL  bPragati PrakashanaMeerutc1996  a257p