Hanson, Earl D. <br/><br/>
The origin and early evolution of animals / 
by Earl D. Hanson 
 - Middletown, Conn. :  Wesleyan University Press,  c1977 
 - ix, 670 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0819550086 :  USD 35.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evolution (Biology)
<br/><br/><label>Dewey Class. No.: </label>591.38