Dingus, L. (2004). Hell Creek, Montana: America's key to the prehistoric past. St. Martin's Press.
Cita Chicago Style (17a ed.)Dingus, Lowell. Hell Creek, Montana: America's Key to the Prehistoric Past. New York: St. Martin's Press, 2004.
Cita MLA (8a ed.)Dingus, Lowell. Hell Creek, Montana: America's Key to the Prehistoric Past. St. Martin's Press, 2004.
Precaución: Estas citas no son 100% exactas.