The UK Hydrographic Office <br/><br/>
Admiralty list of radio signals : maritime radio stations ( Europe, Africa and Asia - excluding the far east) :NP281(1), Vol. 1 

 - United Kingdom  UK Hydrographic Office  2020 
 - xviii,324p. 
<br/><br/><label>ISBN: </label>9780707747019 
<br/><br/><label>Dewey Class. No.: </label>623.8  / UKH