00442nam a22001337a 4500008004100000020001500041082001100056100002100067110002400088245006800112260006600180300001400246650004800260110121t        xxu||||| |||| 00| 0 eng d  a1853391263  a621.671 aFraenkel, Peter.  aBarlow, Roy..et..al  aWindpumps:bA Guide for Development Workers./cFraenkel, Peter.  aNottingham:bIntermediate Technology Publications Ltd,c1993.  axi,156p.:  bWindpumps: A Guide for Development Workers.