Admiralty List of Radio Signals, Volume 1 :   maritime radio stations / 
Great Britain. Hydrographic Office. 
 - Taunton :  United Kingdom Hydrographic Office,  2019/20. 
 - xviii, 312 p. :  pbk ;  30 cm. 
<br/><br/><label>ISBN: </label>9780707744834 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio Signals.<br/>Maritime Radio Stations.<br/>Maritime Security Threats.
<br/><br/><label>Dewey Class. No.: </label>623.89   / ADM