Cita APA (7a ed.)

Janssen, M., Janssen, M. C., Sol, H. G. C., & Wagenaar, R. W. C. (2004). Proceedings of the 6th International Conference on Electronic Commerce. ACM.

Cita Chicago Style (17a ed.)

Janssen, Marijn, Marijn Contributor Janssen, H. G Contributor Sol, y René W. Contributor Wagenaar. Proceedings of the 6th International Conference on Electronic Commerce. [Place of publication not identified]: ACM, 2004.

Cita MLA (9a ed.)

Janssen, Marijn, et al. Proceedings of the 6th International Conference on Electronic Commerce. ACM, 2004.