Nielsen, Claus <br/><br/>
Animal Evolution Interrelationships of the Living Phyla 

 - New York  Oxford University Press  1995 
<br/><br/><label>ISBN: </label>0-19-850682-1 
<br/><br/><label>LC Class. No.: </label>591.38/NIE 
<br/><br/><label>Dewey Class. No.: </label>591.38/NIE