Averkiev, V. P., <br/><br/>
Shipbord fish scouting and electronavigational equipment / 
V. P. Averkiev. 
 - Second revised and enlarged edition. 
 - Rotterdam :  A. A. Balkema,  1985. 
 - 462 pages :  illustrations ;  26 cm. 
 - Russian translations series  21. .
<br/><br/><label>ISBN: </label>9061914361 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sonar in fishing.