Colbert, Edwin Harris,  1905- <br/><br/>
Evolution of the vertebrates :  a history of the backboned animals through time / 
Edwin H. Colbert. 
 - 2d ed. 
 - New York :  Wiley,  c1969. 
 - xvi, 535 p. :  ill. 
<br/><br/><label>ISBN: </label>0471164666 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vertebrates, Fossil.<br/>Vertebrates--Evolution.<br/>Vertebrates--Phylogeny.