Osborn, H. F. (1924). Three new theropoda, protoceratops zone, Central Mongolia.
Chicago Style (17th ed.) CitationOsborn, Henry Fairfield. Three New Theropoda, Protoceratops Zone, Central Mongolia. New York, N.Y, 1924.
MLA (9th ed.) CitationOsborn, Henry Fairfield. Three New Theropoda, Protoceratops Zone, Central Mongolia. 1924.
Warning: These citations may not always be 100% accurate.