LEADER 01659oam 2200409 450 001 9910705331303321 005 20140512095012.0 035 $a(CKB)5470000002450066 035 $a(OCoLC)879484504 035 $a(OCoLC)995470000002450066 035 $a(EXLCZ)995470000002450066 100 $a20140509d1993 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 10$aBibliography of historical geomagnetic main field survey and secular variation reports at the World Data Center-A for Solid Earth Geophysics /$fby Susan McLean, Dennis Smith 210 1$aBoulder, Colorado :$cUnited States Department of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, National Geophysical Data Center,$d1993. 215 $a1 online resource (iii, 193 pages) 225 1 $aReport SE ;$v51 300 $a"August 1993." 300 $aTitle from title screen (viewed on May 9, 2014). 517 1 $aWorld Data Center A- for Solid Earth Geophysics 606 $aGeomagnetism$vObservations$vBibliography 608 $aBibliographies.$2lcgft 615 0$aGeomagnetism 700 $aMcLean$b Susan$f1958-$01398985 702 $aSmith$b Dennis$f1935- 712 02$aWorld Data Center A for Solid Earth Geophysics, 801 0$bGPO 801 1$bGPO 801 2$bGPO 906 $aBOOK 912 $a9910705331303321 996 $aBibliography of historical geomagnetic main field survey and secular variation reports at the World Data Center-A for Solid Earth Geophysics$93463378 997 $aUNINA