John Williams
An Enquiry into the Truth of the Tradition, Concerning the Discovery of America, by Prince Madog ab Owen Gwynedd, about the Year, 1170
John Williams · 2004
ספרייה ציבורית, Project Gutenberg. בלי הרשמה.
Madog ab Owain Gwynedd, 1150-1180?America -- Discovery and exploration -- Welsh