Kennedy, W. J., Landman, N. H., & Cobban, W. A. (1996). The Maastrichtian ammonites Coahuilites sheltoni Böse, 1928, and Sphenodiscus pleurisepta (Conrad, 1857), from the uppermost Pierre Shale and Basal Fox Hills formation of Colorado and Wyoming: 2 tables. American Museum of Natural History.
Chicago Style (17th ed.) CitationKennedy, William J., Neil H. Landman, and William A. Cobban. The Maastrichtian Ammonites Coahuilites Sheltoni Böse, 1928, and Sphenodiscus Pleurisepta (Conrad, 1857), from the Uppermost Pierre Shale and Basal Fox Hills Formation of Colorado and Wyoming: 2 Tables. New York, NY: American Museum of Natural History, 1996.
MLA (9th ed.) CitationKennedy, William J., et al. The Maastrichtian Ammonites Coahuilites Sheltoni Böse, 1928, and Sphenodiscus Pleurisepta (Conrad, 1857), from the Uppermost Pierre Shale and Basal Fox Hills Formation of Colorado and Wyoming: 2 Tables. American Museum of Natural History, 1996.