Goodchild. Proceedings of the 1st ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information. Association for Computing Machinery (ACM).
Cita Chicago (17th ed.)Goodchild. Proceedings of the 1st ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information. Association for Computing Machinery (ACM).
Cita MLA (8th ed.)Goodchild. Proceedings of the 1st ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information. Association for Computing Machinery (ACM).
Atenció: Aquestes cites poden no estar 100% correctes.