000 00876nam a2200241Ia 4500
001 39882
003 BIBL
005 20160527200215.0
008 710511s1971 nyua b 00110 eng
010 _a 74083624
049 _aEVLG
_b372.7
_bS839c
_b1971
_cc1-2
050 0 _aQA135
_b.S84 1971
082 _a372.7/2
092 _a372.7
_bS839c
_b1971
100 1 0 _aStern, Catherine
_9174361
_2Local
245 1 0 _aChildren discover arithmetic
_ban introduction to structural arithmetic
_cCatherine Stern and Margaret B. Stern. Illus. by Phillis Borea. Foreword by W. W. Sawyer.
250 _aRev. and enl. ed.
260 0 _aNew York
_bHarper & Row
_c[1971]
300 _axv, 412 p.
_billus. (part col.)
_c22 cm.
504 _aBibliography: p. 401-404.
650 0 _aArithmetic
_xStudy and teaching.
_954423
_2Local
700 1 0 _aStern, Margaret B.
_ejoint author.
_9280473
_2Local
999 _c30477
_d30477