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1. United States Designated Market Areas, 1996

2000. Geographic Data Technology, Inc. (GDT) and Environmental Systems Research Institute, Inc. (ESRI). United States Designated Market Areas is a polygon theme representing groups of surrounding counties or split counties (by five-digit ZIP) in which... Environmental Systems Research Institute, Inc. (ESRI).

2. World Cities, 2000

2000. Environmental Systems Research Institute, Inc. (ESRI). World Cities is a point theme representing cities throughout the world. Environmental Systems Research Institute, Inc. (ESRI).