Rice, Larry. Badlands // Adventure Travel (July – August 1981): 38–44.
Rice, Larry. «The Great Northern Plains». Backpacker (May 1986): 48–52.
Romer, A. S. Cope Versus Marsh // Systemic Zoology, vol. 13, no. 4 (1964): 201–7.
Scott, Douglas D. and Melissa A. Connor. Post-mortem at the Little Bighorn // Natural History (June 1986): 46–55.
Shor, Betty. The Fossil Feud Between E. D. Cope and O. C. Marsh // Hicksville, New York: Exposition Press, 1974.
Stein, Ross S. and Robert C. Bucknam. Quake Replay in the Great Basin // Natural History (June 1986): 28–36.
Taft, Robert. Photography and the American Scene // New York: Dover Publications Inc., 1964.
West, Linda and Dan Chure. Dinosaur: The Dinosaur National Monument Quarry // Jensen, Utah: Dinosaur Nature Association, 1984.
Wolf, Daniel. The American Space // Middletown, Connecticut: Wesleyan University Press, 1983.
