American Society of Agronomy, Crop Science Society of America, & Soil Science Society of America. (1967). Maximum crop yields: the challenge: Two symposia. American Society of Agronomy.
Chicago Style (17th ed.) CitationAmerican Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. Maximum Crop Yields: The Challenge: Two Symposia. Madison, Wis.: American Society of Agronomy, 1967.
MLA (9th ed.) CitationAmerican Society of Agronomy, et al. Maximum Crop Yields: The Challenge: Two Symposia. American Society of Agronomy, 1967.
Warning: These citations may not always be 100% accurate.