Tetley, Laurie <br/><br/>
Understanding GMDSS : the global maritime distress and safety system 

 - London  Edward Arnold  1994 
 - vii, 311p. 
<br/><br/><label>ISBN: </label>9780340610428 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Distress signals<br/>Artificial satellites in navigation<br/>Radio in navigation
<br/><br/><label>Dewey Class. No.: </label>623.8932  / TET