00410nam a2200181Ia 4500003000400000005001700004008004100021020001900062040000700081041000800088082001300096100001800109245004200127260001500169300000900184650001600193700001900209OSt20260131124324.0250729s1900    xx            000 0 und d  a978-1015056244  cAL  aeng  a513 MORM  aMorton Robert  aModern arithmetic through discovery-5  aNew Jersey  a344p  aMathematics  aMoo Digumurthi