Perry, Richard. <br/><br/>
Life at the sea's frontiers / 
[by] Richard Perry ; illustrated by Nancy Lou Gahan. 
 - New York :  Taplinger,  c1974. 
 - 301 p. :  ill. ;  22 cm. 
 - The many worlds of wildlife series ; v. 3 .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 287 - 294. 
<br/><br/><label>ISBN: </label>0800847954 
<br/><br/><label>LCCN: </label>73-3969 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seashore biology.