00441nam a22001337a 4500008004100000040005500041080002100096100002100117245007800138260005500216300001000271650001200281653001400293230614b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aR 628.3(035)bN2  aTheroux, Frank R  aLaboratory manual for chemical and bacterial analysis of water and sewage  aBikaner: bAgro Botanical Publishers,       c1992  a274p.  aScience  aPollution