Simpson, George Gaylord,  1902-1984, <br/><br/>
Life of the past :  An introduction to paleontology. 

 - 198 páginas 
<br/><br/> "suggestions for further reading": p. 186-87. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontología
<br/><br/><label>LC Class. No.: </label>QE711  / S5