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003 OSt
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006 a|||||r|||| 00| 0
007 ta
008 220909b |||||||| |||| 00| 0 eng d
024 _a44980
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aH:C7C, L0
100 _aWienert K A
245 0 _aNotes on geomagnetic observatory and survey practice
260 _c1970
300 _ap.
_ccm.
650 _a Geophysics
650 _aGeology
942 _hH:C7C, L0
_cTEXL
_2CC
999 _c87203
_d87203