000 00297 a2200109 4500
008 180727b xxu||||| |||| 00|
100 _9Bholanath, Tiwari
245 _aVaigyanik sahitya ke anuvad ki samasya
_cBholanath, Tiwari
260 _aNew Dehli
_bSababdakar
_c1986
300 _a164,p
942 _2ddc
_cBK
999 _c6749
_d6749