Iowa Tribe of Oklahoma & United States. Office of Indian Affairs. (1938). Corporate charter of the Iowa Tribe of Oklahoma: Ratified February 5, 1938. U.S. G.P.O..

Iowa Tribe of Oklahoma and United States. Office of Indian Affairs. Corporate Charter of the Iowa Tribe of Oklahoma: Ratified February 5, 1938. Washington: U.S. G.P.O., 1938.

Iowa Tribe of Oklahoma and United States. Office of Indian Affairs. Corporate Charter of the Iowa Tribe of Oklahoma: Ratified February 5, 1938. U.S. G.P.O., 1938.