000 00293nam a22000977a 4500
008 230825b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aGeophysical digest
260 _aCalcutta:
_bCentral Board of Geophysics,
_c1960
942 _cCR
999 _c59708
_d59708