Quelleninformationen
Ancestry.com. The opening of the Mississippi : a struggle for supremacy in the American interior [Datenbank online]. Provo, UT: Ancestry.com Operations Inc, 2005.Ursprüngliche Daten: Ogg, Frederic Austin,. The opening of the Mississippi : a struggle for supremacy in the American interior. New York: Macmillan, 1904.