LEADER 02105oam 2200589 450 001 9910712077703321 005 20190328080127.0 035 $a(CKB)5470000002489322 035 $a(OCoLC)1041735421 035 $a(OCoLC)995470000002489322 035 $a(EXLCZ)995470000002489322 100 $a20180622d1990 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aMagnetic models for the United States for 1985 /$fby Norman W. Peddie and Audronis K. Zunde 210 1$a[Reston, Virginia] :$cDepartment of the Interior, U.S. Geological Survey,$d1990. 210 3$a[Washington, D.C.] :$cUnited States Government Printing Office,$d1990. 215 $a1 online resource (iii, 26 pages) $cmaps 225 1 $aU.S. Geological Survey circular ;$v1039 300 $aTitle from title screen (viewed June 22, 2018). 320 $aIncludes bibliographical references (page 5). 606 $aGeomagnetism$vMaps$xMethodology 606 $aGeomagnetism$zUnited States$xMathematical models 606 $aMagnetic fields$xMaps$xMethodology 606 $aMagnetic fields$xMathematical models 606 $aGeomagnetism$2fast 606 $aGeomagnetism$xMathematical models$2fast 606 $aMagnetic fields$xMathematical models$2fast 607 $aUnited States$2fast 608 $aMaps.$2lcgft 615 0$aGeomagnetism$xMethodology. 615 0$aGeomagnetism$xMathematical models. 615 0$aMagnetic fields$xMaps$xMethodology. 615 0$aMagnetic fields$xMathematical models. 615 7$aGeomagnetism. 615 7$aGeomagnetism$xMathematical models. 615 7$aMagnetic fields$xMathematical models. 700 $aPeddie$b Norman W.$01394028 702 $aZunde$b Audronis K. 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bGPO 906 $aBOOK 912 $a9910712077703321 996 $aMagnetic models for the United States for 1985$93450797 997 $aUNINA