Holand, Hjalmar R. , 1872-1963 Explorations in America before Columbus / Hjalmar Holand - Second edition - New York : Twayne Publishers , 1958 , c1956. - 234p. : retrs.381p. il. maps us ; 6 Subjects--Topical Terms: America---Discoveries and explorationNorse discovery and exploration Dewey Class. No.: LAS 973.13 HOL