2008. This polygon shapefile is a representation of the coverage area for 2G mobile communications networks around the world in 2008. The data is created... Collins Bartholomew Ltd.
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2008. This polygon shapefile is a representation of the coverage area for 3G mobile communications networks around the world in 2008. The data is created... Collins Bartholomew Ltd.
2008. World Countries represents the boundaries for the countries of the world as they existed in January 2008. Environmental Systems Research Institute (Redlands, Calif.).
2008. World Countries (Generalized) represents generalized boundaries for the countries of the world as they existed in January 2008. Environmental Systems Research Institute (Redlands, Calif.).
2008. 1/30/08. Not given.
2008. 7/17/08. Not given.
2008. 1/4/08. Not given.
2008. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 2G mobile communications networks around the world in 2008. The data is created... Collins Bartholomew Ltd.
2008. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of first quarter 2008.
2008. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 3G mobile communications networks around the world in 2008. The data is created... Collins Bartholomew Ltd.