Não informado. (2001). Annual report of the Colorado Museum of Natural History. Colorado Museum of Natural History.
Chicago-viite (17. p.)Não informado. Annual Report of the Colorado Museum of Natural History. Denver, Colo: Colorado Museum of Natural History, 2001.
MLA-viite (8. p.)Não informado. Annual Report of the Colorado Museum of Natural History. Colorado Museum of Natural History, 2001.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.