American Society of Agronomy. Division A-3 & Rosenzweig, C. (2001). Impacts of El Niño and climate variability on agriculture: Proceedings of a symposium sponsored by Division A-3 of the American Society of Agronomy in Beltsville, MD, 21 Oct. 1998. Crop Science Society of America : Soil Science Society of America.
Chicago Style (17th ed.) CitationAmerican Society of Agronomy. Division A-3 and Cynthia Rosenzweig. Impacts of El Niño and Climate Variability on Agriculture: Proceedings of a Symposium Sponsored by Division A-3 of the American Society of Agronomy in Beltsville, MD, 21 Oct. 1998. Madison, Wis. : b American Society of Agronomy: Crop Science Society of America : Soil Science Society of America, 2001.
MLA (9th ed.) CitationAmerican Society of Agronomy. Division A-3 and Cynthia Rosenzweig. Impacts of El Niño and Climate Variability on Agriculture: Proceedings of a Symposium Sponsored by Division A-3 of the American Society of Agronomy in Beltsville, MD, 21 Oct. 1998. Crop Science Society of America : Soil Science Society of America, 2001.