000 00257 a2200109 4500
008 190218b xxu||||| |||| 00| 0
100 _aSrivastava
245 _aBharatiya vaigyanik /
_cSrivastava
260 _bPrabodh prakasan
300 _a340p.
942 _2ddc
_cBK
999 _c8258
_d8258