Cita APA (7a ed.)

de By, R. A., By, R. A. d. C., & Nittel, S. C. (2006). Proceedings of the 14th annual ACM International Symposium on Advances in Geographic Information Systems. ACM.

Cita Chicago Style (17a ed.)

de By, Rolf A., Rolf A. de Contributor By, y Silvia Contributor Nittel. Proceedings of the 14th Annual ACM International Symposium on Advances in Geographic Information Systems. [Place of publication not identified]: ACM, 2006.

Cita MLA (9a ed.)

de By, Rolf A., et al. Proceedings of the 14th Annual ACM International Symposium on Advances in Geographic Information Systems. ACM, 2006.