Owens, Edward J. <br/><br/>
NOAA technical report ERL 298 - WPL 31 :  development of a portable acoustic echo sounder/ 
Edward J. Owens 
 - Washington :  United States Department of Commerce,  1974 
 - iii, 41 p. ;  ill. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic goods<br/>Sound Technology
<br/><br/><label>Dewey Class. No.: </label>537.5