000 00767nam a2200241Ia 4500
001 39885
003 BIBL
005 20160527200215.0
008 850429s1986 ohua b 00010 eng
010 _a 85071560 //r87
020 _a0675204704 (pbk.)
049 _aEVLG
_b372.72
_bA813e4
_cc1
050 0 _aQA135.5
_b.A782 1986
082 0 _a372.7/2044
_219
092 _a372.72
_bA813e4
100 1 0 _aAshlock, Robert B.
_955248
_2Local
245 1 0 _aError patterns in computation
_ba semi-programmed approach
_cRobert B. Ashlock.
250 _a4th ed.
260 0 _aColumbus [Ohio]
_bMerrill Pub. Co.
_cc1986.
300 _axii, 209 p.
_bill.
_c25 cm.
504 _aBibliography: p. 161-178.
650 0 _aArithmetic
_xStudy and teaching (Elementary)
_954423
_2Local
999 _c30480
_d30480