Echo sounding and sonar for fishing 

 - Farnham, England :  Fishing News Books,  1980 
 - xii, 105 p. :  ill. ;  23 cm. 
 - Food and Agriculture Organization. FAO Fishing Manuals .
<br/><br/><label>ISBN: </label>0852381107 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echo sounding in fishing<br/>Sonar in fishing