00313nam a22001097a 4500008004100000020001500041082001100056100002000067245004000087260005800127300001800185101229t        xxu||||| |||| 00| 0 eng d  a1853390224  a621.69  aLambert, Robert  aHow to make a rope-and-washer pump.  aLondon:bIntermediate Technology Publications,c1990.  aiv,27p.bill.