Gruenwald, K. M. (2002). River of enterprise: The commercial origins of regional identity in the Ohio Valley, 1790-1850. Indiana University Press.
Chicago-referens (17:e uppl.)Gruenwald, Kim M. River of Enterprise: The Commercial Origins of Regional Identity in the Ohio Valley, 1790-1850. Bloomington: Indiana University Press, 2002.
MLA-referens (9:e uppl.)Gruenwald, Kim M. River of Enterprise: The Commercial Origins of Regional Identity in the Ohio Valley, 1790-1850. Indiana University Press, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.