APA
Kimball B. A., Crop Science Society of America. CSSA, Soil Science Society of America. SSSA & American Society of Agronomy. ASA. (1990). Impact of carbon dioxie, trace gases, and climate change on global agriculture. Madison, WI: American Society of Agronomy; Crop Science Society of America; Soil Science Society of America.
Chicago
Kimball Bruce A, Crop Science Society of America. CSSA, Soil Science Society of America. SSSA and American Society of Agronomy. ASA. 1990. Impact of carbon dioxie, trace gases, and climate change on global agriculture. Madison, WI: American Society of Agronomy; Crop Science Society of America; Soil Science Society of America.
Harvard
Kimball B. A., Crop Science Society of America. CSSA, Soil Science Society of America. SSSA and American Society of Agronomy. ASA. (1990). Impact of carbon dioxie, trace gases, and climate change on global agriculture. Madison, WI: American Society of Agronomy; Crop Science Society of America; Soil Science Society of America.
MLA
Kimball Bruce A, Crop Science Society of America. CSSA, Soil Science Society of America. SSSA and American Society of Agronomy. ASA. Impact of carbon dioxie, trace gases, and climate change on global agriculture. Madison, WI: American Society of Agronomy; Crop Science Society of America; Soil Science Society of America. 1990.