000 00265nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aShivprasad Singh
245 0 _aAadhunik parivesh aur astitvawaad
260 _aDelhi
_bN P H
_c1973
650 _aHindi
942 _cBK
999 _c3006
_d3006