1. A Fateful Time, The Background and Legislative History of the Indian Reorganization Act, by Elmer R. Rusco, published in 2000 by the University of Nevada Press.
2. American Indian Reservations and Trust Areas, published in 1996 by the Economic Development Administration of the U.S. Dept. of Commerce, compiled by Veronia E. Velarde Tiller of Tiller Research, Inc., Albuquerque, NM.