000 002970000a22001330004500
082 0 4 _aB I T137n
100 1 _aTainsh, Robert
245 1 0 _aFirst concepts numbers / Robert Tainsh
260 _aNueva York : Priddy Bicknell
300 _a10 Pag.
650 1 4 _aNUMEROS
001 1320
942 _cLGB
999 _c48489
_d48489