Cita APA (7a ed.)

Sierra, C., Sierra, C. C., & Gini, M. C. (2000). Proceedings of the fourth International Conference on Autonomous Agents. ACM.

Cita Chicago Style (17a ed.)

Sierra, Carles, Carles Contributor Sierra, y Maria Contributor Gini. Proceedings of the Fourth International Conference on Autonomous Agents. [Place of publication not identified]: ACM, 2000.

Cita MLA (9a ed.)

Sierra, Carles, et al. Proceedings of the Fourth International Conference on Autonomous Agents. ACM, 2000.