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.
Citazione stile Chigago Style (17a edizione)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.
Citatione MLA (9a ed.)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.