Die evolution der Wirbeltiere /

by Colbert, Edwin Harris 1905-, Colbert, Edwin Harris 1905-
Published 1965

El Libro de los dinosaurios: los reptiles dominantes y sus distintos parientes /

by Colbert, Edwin Harris 1905-, Colbert, Edwin Harris 1905-
Published 1964

Men and dinosaurs : the search in field and laboratory. --

by Colbert, Edwin Harris 1905-, Colbert, Edwin Harris 1905-
Published 1968

Dinosaurus : their discovery and their world. --

by Colbert, Edwin Harris 1905-, Colbert, Edwin Harris 1905-
Published 1964

Evolution of the vertebrates a history of the backboned animals through time

by Colbert, Edwin Harris 1905-
Published 1980