Cita APA (7a ed.)

Workshop Semigroups and Languages Lisbon, Portugal, Universidade de Lisboa. Centro de Algebra, & Araújo, I. M. (2004). Proceedings of the Workshop Semigroups and Languages: Lisboa, Portugal, 27-29 November 2002. World Scientific.

Cita Chicago Style (17a ed.)

Workshop Semigroups and Languages Lisbon, Portugal, Universidade de Lisboa. Centro de Algebra, y Isabel M. Araújo. Proceedings of the Workshop Semigroups and Languages: Lisboa, Portugal, 27-29 November 2002. River Edge, NJ: World Scientific, 2004.

Cita MLA (8a ed.)

Workshop Semigroups and Languages Lisbon, Portugal, et al. Proceedings of the Workshop Semigroups and Languages: Lisboa, Portugal, 27-29 November 2002. World Scientific, 2004.