Hanson, Earl D <br/><br/>
Understanding evolution 
by Earl D. Hanson 
 - New York  Oxford University Press  1981 
 - 556p. ill. 24cm 
<br/><br/> Includes index 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0195027841 
<br/><br/><label>LCCN: </label>80-13037 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evolution