Bernhart, J. D. (1953). Valley of democracy: The frontier versus the plantation in the Ohio Valley, 1775-1818. Indiana University Press.
Chicago-referens (17:e uppl.)Bernhart, John Donald. Valley of Democracy: The Frontier Versus the Plantation in the Ohio Valley, 1775-1818. Bloomington: Indiana University Press, 1953.
MLA-referens (9:e uppl.)Bernhart, John Donald. Valley of Democracy: The Frontier Versus the Plantation in the Ohio Valley, 1775-1818. Indiana University Press, 1953.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.