APA (7th ed.) Citation

Warren, A., & Maizels, J. K. (1977). Ecological change and desertification: Background document. UN.

Chicago Style (17th ed.) Citation

Warren, Andrew, and Judith K. Maizels. Ecological Change and Desertification: Background Document. New York: UN, 1977.

MLA (9th ed.) Citation

Warren, Andrew, and Judith K. Maizels. Ecological Change and Desertification: Background Document. UN, 1977.

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