00320    a2200109   4500020001500000082001300015100002000028245007800048260004600126300002200172650001600194  a0716732505  a510bPET  aPeterson, Ivars  aThe mathematical touristbnew and updated snapshots of modern mathematics  aNew YorkbW.H.Freeman and co.c1988g1998  axviii,266p.c23cm  aMathematics