000 00282nam a2200109Ia 4500
008 230421s9999 xx 000 0 eng d
100 _aSharma (Ashok) Avam Agrawal (Meenu)
245 0 _aSamajik Vigyan Shikshan
250 _aI
260 _bHP Bhargava Book House
942 _2ddc
_cBED
999 _c21132
_d21132