Guide to helicopter/ship operations 
International Chamber of shipping. 
 - Third edition. 
 -  International Chamber of Shipping.  1989 
 - viii, 39 pages 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Helicopters.
<br/><br/><label>Dewey Class. No.: </label>M 629.13335 G946 1989