00453nam a2200133Ia 4500008004100000082001900041100002200060245012900082260002500211300001300236490002300249600002100272650002600293140224s9999    xx            000 0 und d  a621.223(02) L5  aOvens, William G.  aA design manual for water wheels; with details for applications to pumping water for village use and driving small machinery  aMarylandbVitac1975  aiii,77p.  aA Vita Publication  aWilliam G. Ovens  aWater-Wheels-Handbook