The structure and relationships of Protoceratops
Barnum Brown, Erich M. Schlaikjer (Author)
Article, English, 1940
Annals of the New York Academy of Sciences, v. 40, art. 3
Annals of the New York Academy of Sciences.
pages 133-265 : illustrations, folded map ; 23 cm
1673730
Cover title
"Awarded an A. Cressy Morrison Prize in Natural Science in 1939 by the New York Academy of Sciences."