"History of Brulé's Discoveries and Explorations, 1610–1626", Cleveland: Helman-Taylor, 184 p. (online: archive.org, Library of Congress)* Woods, Shirley E., Jr. "Ottawa: The Capital of Canada" Doubleday, 1980., p 9.
"History of Brulé's Discoveries and Explorations, 1610—1626", Cleveland: Helman-Taylor, 1898, 184 p. (en ligne : archive.org, Library of Congress)