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Digital Social Science Center (DSSC), Columbia University Libraries
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National Imagery and Mapping Agency
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Public
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Columbia
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2012
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1. World Port Index, 2012
2012. Digital Social Science Center (DSSC), Columbia University Libraries and United States. National Imagery and Mapping Agency. World Port Index, 2012 is a point theme representing port facilities worldwide. This dataset was derived from the 22nd Edition of the World Port In... National Imagery and Mapping Agency.