APA (7th ed.) Citation

(1992). The El nino phenomenon. United Nations Environment Programme.

Chicago Style (17th ed.) Citation

The El Nino Phenomenon. Nairobi, Kenya: United Nations Environment Programme, 1992.

MLA (9th ed.) Citation

The El Nino Phenomenon. United Nations Environment Programme, 1992.

Warning: These citations may not always be 100% accurate.