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040 _aMAIN
041 _aEnglish
082 _a512.7
_bSIN NO
100 _aSingal, M.K.
245 0 _aApproach to numbers (aproximate development of various number system)
_cM.K. Singal, J.D. Gupta
250 _a4th
260 _aNew Delhi
_bR. Chand
_c1990
300 _axi,223
650 _aAlgebra
700 _aGupta, J.D.
942 _cBK
999 _c397
_d397