00343cam a2200133ua 4500020001800000082001600018100002100034245003100055250000900086260006000095300001200155700002400167700001800191  a9788120321533  a627bQAS/WA  aQasim, Syed R  .  aWater works engineering /   a1 /   aNew Delhi : bPrentice Hall of India Pvt Ltd. , c2002.  a844 ; .1 aMotley, Edward M  .1 aZhu, Guang  .