GMDSS manual : global maritime distress and safety system. 

 - 2011 edition. 
 -  International Maritime Organization.  2011 
 - vii, 813 pages 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Artificial satelites in navigation -- Handbooks, manuals, etc.
<br/><br/><label>Dewey Class. No.: </label>M 623.8932 G569 2011