APA aipamena

Naciones Unidas Oficina contra la Droga y el Delito., & Symposium on Combating International Terrorism : the contribution of the United Nations, (. V. (2003). Combating international terrorism: The contribution of the United Nations : proceedings of Symposium held at Vienna International Centre, Austria, 3-4 June 2002. Vienna: United Nations, Office on Drugs and Crime.

MLA aipamena

Naciones Unidas Oficina contra la Droga y el Delito., and (2002 Vienna) Symposium on Combating International Terrorism : the contribution of the United Nations. Combating International Terrorism: The Contribution of the United Nations : Proceedings of Symposium Held At Vienna International Centre, Austria, 3-4 June 2002. Vienna: United Nations, Office on Drugs and Crime, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.