^* Paul D. Spudis, The Once and Future Moon, Smithsonian Institution Press, 1996, (ردمك 1-56098-634-4)
^The National Aeronautics and Space Administration (NASA) / International Astronomical Union (IAU). "MOON – Mare Marginis". USGS Astrogeology Science Center. مؤرشف من الأصل في 2012-12-14.
