Keoke, E. D., & Porterfield, K. M. (2002). Encyclopedia of American Indian contributions to the world: 15,000 years of inventions and innovations. Facts on File.
Chicago Style (17th ed.) CitationKeoke, Emory Dean, and Kay Marie Porterfield. Encyclopedia of American Indian Contributions to the World: 15,000 Years of Inventions and Innovations. New York: Facts on File, 2002.
MLA (9th ed.) CitationKeoke, Emory Dean, and Kay Marie Porterfield. Encyclopedia of American Indian Contributions to the World: 15,000 Years of Inventions and Innovations. Facts on File, 2002.
Warning: These citations may not always be 100% accurate.