000 00301nam a22000977a 4500
008 230822b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aFortnightly journal of industry and commerce
260 _aNew Delhi:
_bK. Kumar,
_c1990
942 _cCR
999 _c59194
_d59194