Romer, Alfred <br/><br/>
Vertibrate paleontology 

 - 3rd ed 
 - Chicogo  University of Chicago Press  1971 
 - viii,468p   
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<br/><br/><label>Subjects--Index Terms: </label>vertibrate palaeontology  palaeontology 
<br/><br/><label>Dewey Class. No.: </label>566