Tucker, D.G. <br/><br/>
Underwater Observation Using Sonar 

 - London,  Fishing News Books,  1966, 
 - 135p.  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Underwater<br/>Observation Using Sonar
<br/><br/><label>Dewey Class. No.: </label>639.2.81.534.24  / TUC