00265nam a2200109Ia 4500082001900000100002200019245003600041260005200077300001600129500000500145700000500150  a510.9bKr89.TP  aKrantz, Steven G.  aTechniques of problem solvingb  aProvidencebAmerican Mathematical Societyc1997  axiii, 465p.  a  a