1. A. Leroi-Gourhan,Treasures of Prehistoric Art, Harry N. Abrams, Inc., New York (1965).
2. F. A. Barnes,Prehistoric Rock Art, Wasatch Publications, Inc., Salt Lake City, Utah (1982).
3. A. H. Breuil,Four Hundred Centuries of Cave Art, Hacker Art Books, New York (1979).
4. F. Kirkland and W. W. Newcomb, Jr.,Rock Art of Texas Indians, The University of Texas Press, Austin, Texas (1967).
5. H. J. Shafer,Ancient Texans, Texas Monthly Press, Austin, Texas (1986).