00335nam a2200133 a 450000500170000002000150001708200130003210000180004524500320006326000300009530000270012570000280015270000210018020251203110159.0  a1568811152  a510bBEC  aBeck, Anatole  aExcursions into mathematics  aNatickbA.K. Petersc2000  axxv, 499p.c23 cm P.B.  aBleicher, Michael N.and  aCrowe, Donald W.