Cita APA (7a ed.)

Feldman, S., Feldman, S. C., & Wellman, M. C. (1999). Proceedings of the 1st ACM Conference on Electronic Commerce. ACM.

Cita Chicago Style (17a ed.)

Feldman, Stuart, Stuart Contributor Feldman, y Michael Contributor Wellman. Proceedings of the 1st ACM Conference on Electronic Commerce. [Place of publication not identified]: ACM, 1999.

Cita MLA (9a ed.)

Feldman, Stuart, et al. Proceedings of the 1st ACM Conference on Electronic Commerce. ACM, 1999.