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039 9 _a201502072152
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040 _aVNU
041 _aeng
044 _aGB
082 _a 512.9/42
_bABL(5) 1981
_219
090 _a512.9
_bABL(5) 1981
094 _a22.1
100 1 _aAblon, Leon J.
245 1 0 _aQuadratic equations and curves.
_nVol. 5 /
_cLeon J. Ablon,....
260 _aCalifornia :
_bThe Benjamin pub,
_c1981
300 _a144 p.
650 _aAlgebra
_x Graphic methods
650 _aEquations, Quadratic.
653 _aPhương trình bậc hai
653 _aToán học
653 _aĐại số
700 1 _aAblon, Leon J.
700 1 _aSuner, Helen B.
900 _aTrue
911 _aP.T.Xuân
912 _aT.K.Thanh
925 _aG
926 _a0
927 _aSH
928 1 _aAV-D1/00864
942 _c1
999 _c338619
_d338619