00305nam a2200133Ia 4500020000900000082001100009100004300020245004000063250000600103260002700109300000800136500000900144650001800153  aNULL  a512.81  aCohen, Leon Warren/ Ehrlich, Gertrude  0aStructure of The Real Number System  a-  aN. DelhibVan Nostrand  a116  a3581  aReal Analysis