00246nam a2200109Ia 4500082002000000100002900020245002700049260003600076300001400112500000500126700000500131  a510.9bSt814.MT  aSteen, Lynn Arthurd ed.  aMathematics tomorrowb  aNew YorkbSpringer-Verlagc1981  avi, 250p.  a  a