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2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 197 sovereign states. These rarely correspond to actual administrative divisions but rather highlight geographical r... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile represents time zone boundaries for the world. Time zones are primarily derived from the Central Intelligence Agency map of ... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile contains the boundaries of urban areas with dense areas of human habitation worldwide derived from 2002-2003 MODIS satellite... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile contains the boundaries of urban areas with dense areas of human habitation worldwide derived from 2002-2003 MODIS satellite... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts boundaries of urban areas with dense areas of human habitation worldwide. Regional significance is favored over popu... North American Cartographic Information Society.