000 00275nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aHar Swarup Sharma
245 2 _aA Text book of theory of numbers
260 _aAgra
_bRam prasad & sons
_c1971
650 _aMath
942 _cBK
999 _c2736
_d2736