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| Utgitt
| New York : United Nations , 1970
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| Omfang
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| Opplysninger
| "ST/ECA/134" - Verso. - "This study is based on ... The United Nations Interregional Seminar on Coastal Shipping, Feeder and Ferry Services, held at Os per Bergen, Norway, from 1 to 21 September 1969". - Over tittelen: Department of Economic and Social Affairs
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