00262nam a2200109Ia 4500008004100000041000800041082001600049100001500065245003000080260003400110300000800144211209s1964    xx            000 0 und d  aeng  a510 N64 HOB  aHOBART C C  aMODERN BASIC MATHEMATICS   bAPPLETON-CENTURY CROFTSc1964  a478