Colbert, Edwin H. <br/><br/>
Evolution of the vertebrates :  a history of the backboned animals through time / 
Edwin H Colbert. 
 - New York :  John Wiley & Sons,  1955. 
 - xiii, 479 p. :  ill. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vertebrates, Fossil.<br/>Vertebrates--Evolution.<br/>Phylogeny.