Leigh-Pemberton, John <br/><br/>
Sea and air mammals 
John Leigh-Pemberton 
 - Loughborough  Wills&Hepworth  1972 
 - 50 p.  illus.  18 cm. 
 - A Ladybird book  series 691 .
<br/><br/><label>ISBN: </label>0721403190 
<br/><br/><label>Dewey Class. No.: </label>599