1. Aberi, Lieut. James W. 1970Through the Country of the Comanche Indians in the Fall of the Year 1845. Edited by John Galvin. San Francisco. John Howell Books.
2. Atlas of American Agriculture 1936 U.S. Department of Agriculture. Washington D.C. Government Printing Office.
3. Baldwin, Gordon C. 1965The Warrior Apaches. Tucson, Arizona. Dale Stuart King Publisher.
4. Beals, Ralph L. 1932 The Comparative Ethnology of Northern before 1750.lbero-Americana. No. 2. pp. 93-5. Berkeley, California. University of California Press.
5. Berlandier, Jean Louis 1969The Indians of Texas in 1830. Edited and introduced by John C. Ewers. Washington, D.C. Smithsonian Institution Press.