Cowen, Richard, 1940-  Cowen, Richard, 1940- <br/><br/>
History of life / 
Richard Cowen. 
 - New York :  McGraw-Hill,  c1976. 
 - McGraw-Hill earth science paperback series .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. [135]. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>LCCN: </label>74026894 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontology.
<br/><br/><label>LC Class. No.: </label>QE711.2  / .C68 
<br/><br/><label>Dewey Class. No.: </label>560