00289nam a2200121Ia 4500082001900000100001800019245003500037260003100072300002100103490003300124500000500157700000500162  a515.1bD263.AN  aDavis, Martin  aApplied nonstandard analysisb  aNew YorkbJohn Wileyc1977  axii, 181p. Index  aPure and Applied Mathematics  a  a