000 00257nam a22001097a 4500
003 OSt
008 230614b |||||||| |||| 00| 0 eng d
100 _aVerma, Omprakash
245 _aChir Sammat Yantriki
260 _bDelhi University
_c1965
942 _2ddc
_cBK
999 _c27832
_d27832