APA (7th ed.) Citation

ONU. (1985). The blue helmets: A review of United Nations peace-keeping. Department of Public Information.

Chicago Style (17th ed.) Citation

ONU. The Blue Helmets: A Review of United Nations Peace-keeping. Nueva York: Department of Public Information, 1985.

MLA (9th ed.) Citation

ONU. The Blue Helmets: A Review of United Nations Peace-keeping. Department of Public Information, 1985.