Eshelman, Ralph E., Emry, Robert J., Domning, Daryl P., and Bohaska, David J. 2002. "
Biography and Bibliography of Clayton Edward Ray." In
Cenozoic Mammals of Land and Sea: Tributes to the Career of Clayton E. Ray. Emry, Robert J., editor. 1–13. Smithsonian Institution. In
Smithsonian Contributions to Paleobiology, 93.