APA (7th ed.) Citation

American Society of Agronomy, Crop Science Society of America, University of Nebraska (Lincoln campus), & Eastin, J. D. (1969). Physiological aspects of crop yield. American Society of Agronomy.

Chicago Style (17th ed.) Citation

American Society of Agronomy, Crop Science Society of America, University of Nebraska (Lincoln campus), and Jerry D. Eastin. Physiological Aspects of Crop Yield. Madison, Wis: American Society of Agronomy, 1969.

MLA (9th ed.) Citation

American Society of Agronomy, et al. Physiological Aspects of Crop Yield. American Society of Agronomy, 1969.

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