Burke, C. H. (1911). Investigation of Indian contracts: Hearings before the Select Committee of the House of Representatives appointed under authority of House resolution no. 847, June 25, 1910, for the purpose of investigating Indian contracts with the Five Civilized Tribes and the Osage Indians in Oklahoma, 61st Congress, 2d session. Washington: U.S. Govt. Print. Off..

Burke, Charles H. Investigation of Indian Contracts: Hearings Before the Select Committee of the House of Representatives Appointed Under Authority of House Resolution No. 847, June 25, 1910, for the Purpose of Investigating Indian Contracts With the Five Civilized Tribes and the Osage Indians in Oklahoma, 61st Congress, 2d Session. Washington: U.S. Govt. Print. Off., 1911.

Burke, Charles H. Investigation of Indian Contracts: Hearings Before the Select Committee of the House of Representatives Appointed Under Authority of House Resolution No. 847, June 25, 1910, for the Purpose of Investigating Indian Contracts With the Five Civilized Tribes and the Osage Indians in Oklahoma, 61st Congress, 2d Session. Washington: U.S. Govt. Print. Off., 1911.