Geographical coordinate system:
http://resources.arcgis.com/en/help/arcgis-rest-api/index.html#/Geographic_coordinate_systems/02r300000105000000/
Download please go to:
http://download.csdn.net/detail/dongyu1009/9456380
Projection coordinate system:
http://resources.arcgis.com/en/help/arcgis-rest-api/index.html#/Projected_coordinate_systems/02r3000000vt000000/
Download please go to:
http://download.csdn.net/detail/dongyu1009/9456382