Note 156 — Chapter VI · THE PROBLEM OF MAYDA
Reading edition
W. H. Babcock: Indications of Visits of White Men to America before Columbus, Proc. 19th Internatl. Congr. of Americanists, Held at Washington, Dec. 27–31, 1915, [Smithsonian Institution,] Washington, D. C., 1917, pp. 469–478; map on p. 476.