International Symposium on Advances in Geographic Information Systems, Association for Computing Machinery, & Medeiros, C. B. (1999). ACM GIS'99: Proceedings of the 7th International Symposium on Advances in Geographic Information Systems, November 5-6, 1999, Kansas City, MO, USA. ACM.
Cita Chicago Style (17a ed.)International Symposium on Advances in Geographic Information Systems, Association for Computing Machinery, y Claudia Bauzer Medeiros. ACM GIS'99: Proceedings of the 7th International Symposium on Advances in Geographic Information Systems, November 5-6, 1999, Kansas City, MO, USA. New York: ACM, 1999.
Cita MLA (9a ed.)International Symposium on Advances in Geographic Information Systems, et al. ACM GIS'99: Proceedings of the 7th International Symposium on Advances in Geographic Information Systems, November 5-6, 1999, Kansas City, MO, USA. ACM, 1999.
