00300nam a2200121Ia 4500008004100000041000800041082002000049100001600069245003000085250001000115260004500125300000800170211209s1955    xx            000 0 und d  aeng  a628 N55 BAB/DOL  aBABBITT H E  aWATER SUPPLY ENGINEERING   a5 ed.  aNEW YORKbMCGRAW-HILL BOOK COMPANYc1955  a616