APA (7th ed.) Citation

de By, R. A. (2014). Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information. Association for Computing Machinery.

Chicago Style (17th ed.) Citation

de By, Rolf A. Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information. New York,NY,United States: Association for Computing Machinery, 2014.

MLA (9th ed.) Citation

de By, Rolf A. Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information. Association for Computing Machinery, 2014.