North American Eocene sea cows (Mammalia : Sirenia) - Ray, Clayton Edward; Domning, Daryl Paul; Morgan, Gary Scott (Washington : Smithsonian Institution Press, 1982)
En: Smithsonian contributions to paleobiology. -- Washington : Smithsonian Institution Press, 1969- . -- No. 52 (1982).
Keywords: PALEONTOLOGIA -- AMERICA DEL NORTE; PALEONTOLOGIA -- EOCENO