Admiralty List of Radio Signals, Vol.4 :   Meteorological observation stations / 

 - 2012/13 ed. 
 - Taunton :   United Kingdom Hydrographic Office ,   2012. 
 - viii, 168 p.;  30 cm. 
 - NP 284 .
<br/><br/><label>ISBN: </label>9780707719795  £ 28.65 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Distress signals
<br/><br/><label>Dewey Class. No.: </label>623.8932  / Un314 V.4