ఓడ: కూర్పుల మధ్య తేడాలు

*{{cite book |author=United Nations Conference on Trade and Development (UNCTAD) |authorlink=United Nations Conference on Trade and Development |coauthors= |editor= |others= |title=Review of Maritime Transport, 2007 |origdate= |origyear= |origmonth= |url=http://www.unctad.org/en/docs/rmt2007_en.pdf |format= |accessdate= |accessyear= |accessmonth= |edition= |series= |volume= |date= |year=2007 |month= |publisher=United Nations |location=New York and Geneva |language= |isbn= |oclc= |doi= |id= |pages= |chapter= |chapterurl= |quote= }}

*{{cite book |last=Stopford|first=Martin|url=http://books.google.com/books?id=_R-YB70kly8C&printsec=frontcover |title=Maritime economics |publisher=Routledge |location=New York |year=1997 |pages= |isbn=0-415-15309-3 |oclc= |doi=}}