000 00260nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aO P Chug
245 0 _aIntroduction to theory of numbers
260 _aDelhi
_bLaxmi Pub
_c1983
650 _aMath
942 _cBK
999 _c4434
_d4434