00463nam a2200169   450000500170000000800040001704000090002105000270003010000210005724500690007826000530014730000130020050000190021365000160023270000230024871000220027120150611142619.0000  aUOEL  aQA39.2b.S43 1963 bk 2  aEngen, Van Henry  aSeeing Through  MathematicscHenry, Van Engen Maurice L. Hartung  aChicago ;bScott, Foresman and Company ,cc1963.  a528 p. :  aincludes index  aMathematics  aHartung L. Maurice  aTrimble C. Harold