1. New world mammoth distribution;Agenbroad,1984
2. North American Mammoths. An Annotated Bibliography 1940–1990. Quaternary Studies Program;Agenbroad,1991
3. Mammuthus primigenius remains from the mammoth site of Hot Springs, South Dakota;Agenbroad,1994
4. Illustrations of the Quadrupeda, or Quadrupeds, Being the Arrangement of the True Four-footed Beasts Indicated in Outline;Burnett,1830
5. The Freshwater Molluscs of Canada. National Museum of Natural Sciences;Clarke,1981