2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This line shapefile displays graticules (grid lines of latitude parallels and longitude meridians) for the world at 20 degree intervals. Graticules... North American Cartographic Information Society.
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2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This line shapefile displays graticules (grid lines of latitude parallels and longitude meridians) for the world at 30 degree intervals. Graticules... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This line shapefile displays graticules (grid lines of latitude parallels and longitude meridians) for the world at 30 degree intervals. Graticules... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This line shapefile displays graticules (grid lines of latitude parallels and longitude meridians) for the world at 5 degree intervals. Graticules ... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This line shapefile displays graticules (grid lines of latitude parallels and longitude meridians) for the world at 5 degree intervals. Graticules ... North American Cartographic Information Society.
2012. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 2G mobile communications networks around the world in 2012. The data is created... Collins Bartholomew Ltd.
2012. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of December 2012.
2012. Collins Bartholomew Ltd. This raster dataset is a representation of the coverage area for 2G mobile communications networks around the world. Mobile Coverage is released an... Collins Bartholomew Ltd.
2012. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 3G mobile communications networks around the world in 2012. The data is created... Collins Bartholomew Ltd.
2012. Collins Bartholomew Ltd. Representation of the area covered by 3G mobile communications around the world as of December 2012.