Não informado. (2001). Annual report of the Colorado Museum of Natural History. Colorado Museum of Natural History.
Chicago (17e ed.) BronvermeldingNão informado. Annual Report of the Colorado Museum of Natural History. Denver, Colo: Colorado Museum of Natural History, 2001.
MLA (8e ed.) BronvermeldingNão informado. Annual Report of the Colorado Museum of Natural History. Colorado Museum of Natural History, 2001.
Let op: Deze citaties zijn niet altijd 100% accuraat.