United Nations Educational, Scientific and Cultural Organization (UNESCO). (1980). Proceedings of the workshop on the phenomenon known as "El Nino" Guayaquil, Ecuador 4-12 December 1974. United Nations Educational Scientific and Cultural Organization.
Chicago-viite (17. p.)United Nations Educational, Scientific and Cultural Organization (UNESCO). Proceedings of the Workshop on the Phenomenon Known as "El Nino" Guayaquil, Ecuador 4-12 December 1974. Paris, France: United Nations Educational Scientific and Cultural Organization, 1980.
MLA-viite (9. p.)United Nations Educational, Scientific and Cultural Organization (UNESCO). Proceedings of the Workshop on the Phenomenon Known as "El Nino" Guayaquil, Ecuador 4-12 December 1974. United Nations Educational Scientific and Cultural Organization, 1980.