00442nam a2200169Ia 450000500170000000800410001704000190005804100120007708200130008910000190010224500480012126000450016930000140021450400190022865000150024785000100026220240605102401.0131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a511bSWA  aRobert L Swain  aUnderstanding MathematicscSwain, Robert L   aNew YorkbHolt, Rinehart & Winstonc1962  axi,268p.   aIncludes index  aArithmetic  aLCBED