000 00508nam a2200217Ia 4500
008 230524s9999 xx 000 0 und d
020 _a066959739
040 _cUDSM
050 _aIDS QA107.D5
100 _aDilley, C.
245 0 _aHeath elementary mathematics
260 _aLexington
260 _bD.C. Heath and Company
260 _c1972
300 _a316p.
300 _c24cm.
650 _aArithmetic
700 _aill.
942 _2Library of Congress Classification
942 _cBook
999 _c112174
_d112174