00534nam a2200169Ia 4500020001800000082001800018100003700036100002400073100002200097245007300119260003000192300001600222504001900238650002600257650004500283650003600328  a9781522524465  a910.285 CAM-V  aCampelo, Claudio Elizio Calazans  aBertolotto, Michela  aCorcoran, Padraig 0aVolunteered geographic information and the future of geospatial data  aHersheybIGI Globalc2017  axxiii, 357p  aIncludes index  aGeography information  aComputer applicationvInformation system  aGeospatial datavDigital rights