Admiralty list of radio signals volume 6, part 6 : pilot services, vessel traffic services and port operations: North East Asia and Russia (Pacific Co 

 -  The United Kingdom Hydrographic Office.  2012 
 - xx, 364 pages 
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio in navigation.
<br/><br/><label>Dewey Class. No.: </label>M 623.89 Ad6 2012