How to be a successful seafarer 
Otto, Martin. 
 - 2nd ed. 
 -  Clausen & Bosse EmbH,  2022 
 - 139 pages 
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<br/><br/><label>ISBN: </label>978-3-944472-28-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Merchant mariners.
<br/><br/><label>Dewey Class. No.: </label>301.55 O912 2022