Kruda tunaro: Malsamoj inter versioj
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Enhavo forigita Enhavo aldonita
Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.6 |
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|arkivurl= https://web.archive.org/web/20080116151225/http://www.imo.org/Conventions/contents.asp?topic_id=259&doc_id=685
|arkivdato= 2008-01-16
}} {{Webarchiv|url=https://archive.is/20080116151225/http://www.imo.org/Conventions/contents.asp?topic_id=259&doc_id=685 |date=2008-01-16 }}
* {{cite book |last=Hayler |first=William B. |title=American Merchant Seaman's Manual |year=2003 |publisher= Cornell Maritime Press |isbn= 0-87033-549-9 }}.
* {{cite book
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