000 00373nam a2200157Ia 4500
008 180611s9999||||xx |||||||||||||| ||und||
020 _a0-205-06054-4
041 _aen
082 _a372.7
100 _aKRAMER Klaas
245 0 _aTeaching Elementary School Mathematics
250 _a04th
260 _aLondon
_bAllyn And Bacon Inc
_c1978
300 _a525.P
942 _cLL
999 _c1641
_d1641