00296nam a2200121Ia 4500008004100000041000800041082000800049100001600057245004300073250001000116260004000126300000800166211209s1989    xx            000 0 und d  aeng  aBIR  aBIRDIE, G S  aWATER SUPPLY AND SANITARY ENGINEERING   a4 ed.  aNEW DELHIbDHANPAT RAI & SONSc1989  a965