000 00279nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aGulshan Rai/ S N Verma
245 0 _aRajnitik siddhaant B A II opt I
260 _aKarnal
_bJyoti Bk Depot
650 _aPol Science
942 _cBK
999 _c9695
_d9695