LEADER 01878nem 2200469Ia 450 001 9910700255403321 005 20110405142931.0 035 $a(CKB)5470000002408422 035 $a(OCoLC)711185511 035 $a(EXLCZ)995470000002408422 100 $a20110405d2008 za 101 0 $aeng 120 $ab|||||||||||| 121 $a||||||||| 124 $bd 135 $aurcn||||||||| 181 $ccrd$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aGeologic map of the Helen Planitia quadrangle (V-52), Venus$b[electronic resource] /$fby Ivan Lo?pez and Vicki Hansen ; prepared for the National Aeronautics and Space Administration 210 1$a[Reston, Va.?] :$cU.S. Dept, of the Interior, U.S. Geological Survey,$d2008. 215 $a1 online resource (1 map) $ccolor +$e1 pamphlet (22 pages) 225 1 $aScientific investigations map ;$v3026 300 $aRelief shown pictorially. 300 $aTitle from PDF title screen (viewed on Apr. 5, 2011). 300 $aCoordinates shown as W 240? -- E 270?/S -25? -- S -50?. 300 $aIncludes quadrangle location map, 2 ancillary maps (some col.), 6 ancillary remote-sensing maps, and 1 lithologic column. 320 $aIncludes bibliographical references (pages 18-21 of pamphlet). 517 $aGeologic map of the Helen Planitia quadrangle 607 $aVenus (Planet)$xGeology$vMaps 608 $aRemote-sensing maps.$2lcgft 608 $aMaps.$2lcgft 700 $aLo?pez$b Ivan$01410343 701 $aHansen$b Vicki$01410344 712 02$aGeological Survey (U.S.) 712 02$aUnited States.$bNational Aeronautics and Space Administration. 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910700255403321 996 $aGeologic map of the Helen Planitia quadrangle (V-52), Venus$93498822 997 $aUNINA