000 00675nam a2200217Ia 4500
001 20675
003 BIBL
005 20160527194059.0
008 710511s1949 nyua b 00110 eng
010 _a 91083624
049 _aEVLG
_b372.7
_bS839c
_cc1
050 0 _aQA135
_b.S84 1949
082 _a372.7/2
092 _a372.7
_bS839c
100 1 0 _aStern, Catherine
_2Local
_9174361
245 1 0 _aChildren discover arithmetic
_ban introduction to structural arithmetic
_cForeword by Marguerite Lehr.
260 0 _aNew York
_bHarper & Row
_c[1949]
300 _axxi, 295 p.
504 _aBibliography: p. 291-302.
650 0 _aArithmetic
_xStudy and teaching.
_2Local
_954423
999 _c14938
_d14938