Colbert, E. H. (1971). Men and dinosaurs: The search in field and laboratory. Penguin.
Lua i Stíl Chicago (17ú heag.)Colbert, Edwin H.. Men and Dinosaurs: The Search in Field and Laboratory. Harmondsworth: Penguin, 1971.
Lua MLA (8ú heag.)Colbert, Edwin H.. Men and Dinosaurs: The Search in Field and Laboratory. Penguin, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.