00265nam a2200097Ia 450000500170000000800410001708200120005810000180007024500350008826000440012320260224040919.0260224s9999||||xx |||||||||||||| ||und||  a627 LEW  aLewitt, E.W.  0aHydraulics and fluid mechanics  aLondon: Sir, ISACC Pitman & Sons c1958