Au, Whitlow W L <br/><br/>
Sonar of dolphins   
by Whitlow W L Au 
 - New York  Springer Verlag  1993 
 - xi, 277p 
<br/><br/><label>ISBN: </label>0387978356 
<br/><br/><label>Dewey Class. No.: </label>599.53  / N93