01878nem 2200469Ia 450 991070025540332120110405142931.0(CKB)5470000002408422(OCoLC)711185511(EXLCZ)99547000000240842220110405d2008 za engb|||||||||||||||||||||durcn|||||||||crdrdacontentcrdamediacrrdacarrierGeologic map of the Helen Planitia quadrangle (V-52), Venus[electronic resource] /by Ivan López and Vicki Hansen ; prepared for the National Aeronautics and Space Administration[Reston, Va.?] :U.S. Dept, of the Interior, U.S. Geological Survey,2008.1 online resource (1 map) color +1 pamphlet (22 pages)Scientific investigations map ;3026Relief shown pictorially.Title from PDF title screen (viewed on Apr. 5, 2011).Coordinates shown as W 240⁰ -- E 270⁰/S -25⁰ -- S -50⁰.Includes quadrangle location map, 2 ancillary maps (some col.), 6 ancillary remote-sensing maps, and 1 lithologic column.Includes bibliographical references (pages 18-21 of pamphlet).Geologic map of the Helen Planitia quadrangle Venus (Planet)GeologyMapsRemote-sensing maps.lcgftMaps.lcgftLópez Ivan1410343Hansen Vicki1410344Geological Survey (U.S.)United States.National Aeronautics and Space Administration.GPOGPOBOOK9910700255403321Geologic map of the Helen Planitia quadrangle (V-52), Venus3498822UNINA