000 00334nam a2200145Ia 4500
008 240723s9999 xx 000 0 und d
041 _aEnglish
084 _aB
_bM0
100 _aM.K. Singhal
245 0 _aApproach to numbers
260 _aDelhi
_bR. Chand & Co.
_c1980
300 _ap.223
650 _aMathematics
942 _cBK
999 _c309117
_d309117