Goodchild, M., Sui, D. C., Pfoser, D. C., & Goodchild, M. F. C. (2012). GEOCROWD: Proceedings of the 1st ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information : November 6, 2012, Redondo Beach, California, USA. ACM.
Cita Chicago Style (17a ed.)Goodchild, Mike, Dan Contributor Sui, Dieter Contributor Pfoser, y Michael F Contributor Goodchild. GEOCROWD: Proceedings of the 1st ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information : November 6, 2012, Redondo Beach, California, USA. [Place of publication not identified]: ACM, 2012.
Cita MLA (9a ed.)Goodchild, Mike, et al. GEOCROWD: Proceedings of the 1st ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information : November 6, 2012, Redondo Beach, California, USA. ACM, 2012.
