00330nam a2200121 a 450000500170000008200130001710000200003024500370005026000360008730000360012349000330015963000160019220251202164141.0  a510bLAR  aLarson, Loren C  aProblem-solving through problems  aNew YorkbSpringer-Verlagc1983  axi, 332p.b104 ill.c22 cm.cHB  aProblem books in Mathematics  aMathematics