000 00303nam a22001097a 4500
008 230821b |||||||| |||| 00| 0 eng d
022 _a0970-3705
040 _aNational Science Library
_cNational Science Library
245 _aFour p news
260 _aCalcutta:
_bSankar Chakravarty,
_c1992
942 _cCR
999 _c59181
_d59181