APA (7th ed.) Citation

American Society of Agronomy. (1967). Maximum crop yields--the challenge. ASA.

Chicago Style (17th ed.) Citation

American Society of Agronomy. Maximum Crop Yields--the Challenge. Madison: ASA, 1967.

MLA (9th ed.) Citation

American Society of Agronomy. Maximum Crop Yields--the Challenge. ASA, 1967.

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