Mebust, Larry E. <br/><br/>
Gray Whales: A Bird´s Eye View :  A field guide for boat skippers and whalewatchers / 
Larry E. Mebust. 
 - Long Beach, California :  Offshore Publishing,  1992. 
 - 37 p. ;  il. ;  22 cm. 
<br/><br/><br/>Inglés 
<br/><br/><label>ISBN: </label>0963548506 
<br/><br/><label>Subjects--Index Terms: </label>Whale watching Avistamiento de ballenas 
<br/><br/><label>Dewey Class. No.: </label>599.522