File:DouglassMartianCrater.jpg

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DescriptionDouglassMartianCrater.jpg	Español: Cráter Marciano Douglass (IAU/USGS/Goddard/A SU/USGS)
Date	5 June 2016
Source	http://planetarynames.wr.usgs.gov/Feature/1631
Author	NASA

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