Copway, G. (1850). Organization of a new Indian territory, east of the Missouri River: Arguments and reasons submitted to the honorable members of the Senate and House of Representatives of the 31st Congress of the United States. New York: S.W. Benedict.

Copway, George. Organization of a New Indian Territory, East of the Missouri River: Arguments and Reasons Submitted to the Honorable Members of the Senate and House of Representatives of the 31st Congress of the United States. New York: S.W. Benedict, 1850.

Copway, George. Organization of a New Indian Territory, East of the Missouri River: Arguments and Reasons Submitted to the Honorable Members of the Senate and House of Representatives of the 31st Congress of the United States. New York: S.W. Benedict, 1850.