Carrighar, Sally. <br/><br/>
The twilight seas / 
[by] Sally Carrighar ; illustrations by Peter Parnall. 
 - New York :  Weybright and Talley,  c1975. 
 - 179 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0679400818 
<br/><br/><label>LCCN: </label>74-83697 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Whales.