00511nam a2200157Ia 4500003000600000005001700006008004100023020001800064040002500082082001900107100003500126245011200161250001800273260004000291300002200331NORSU20240326011714.0240215s9999    xx            000 0 und d  a0-201-44083-0  aNORSU-DumcNORSU-Dum  a372.7 L57 1997  aLevy, Louis L. & Fritz, Edward 2aA Problem Solving Approach to Mathematics : for Elementary School TeacherscBy Louis L. Levy & Edward Fritz  aSixth Edition  bAddison-Wesleyc1997aMassachusetts  a153 pages, 28 cm.