000 00260nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aPukhraj Jain
245 0 _aRajnitik siddhaant
260 _aAgra
_bSahitya Bhawan
_c1989
650 _aPol Science
942 _cBK
999 _c7553
_d7553