1996. Environmental Systems Research Institute (Redlands, Calif.). World Continents represents the boundaries for the continents of the world. ESRI.
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1996. Environmental Systems Research Institute (Redlands, Calif.). World Continents represents the boundaries for the continents of the world. ESRI.
2002. National Geospatial Intellience Agency (formerly the U.S. Defense Mapping Agency - DMA). This datalayer is a polyline coverage representing coastlines and international boundaries for every continent including Antarctica at a scale of 1... East View Cartographic.