00490    a2200181   4500020001500000082001600015100002100031245004900052260004000101300001800141650002000159650001600179650003300195700002100228700001700249700002000266700002200286  a1853391263  a621.21bWIN  aFraenkel, Peter   aWindpumps ba guide for development workers   aLondonbIT Publicationsc1993g1993  axi155p.c30cm  aApplied physics  aWater mills  aHydraulic - Power Technology  aBokalders, Varis  aBarlow, Roy   aCrick, Frances   aDerrick, Anthony