APA (7th ed.) Citation

Smith, J. S. C., Diers, B. W., Specht, J. E., & Carver, B. F. (2014). Yield gains in major U.S. field crops. American Society of Agronomy : Crop Science Society of America : Soil Science Society of America.

Chicago Style (17th ed.) Citation

Smith, J. Stephen C., Brian W. Diers, James Eugene Specht, and Brett Frederick Carver. Yield Gains in Major U.S. Field Crops. Madison, WI: American Society of Agronomy : Crop Science Society of America : Soil Science Society of America, 2014.

MLA (9th ed.) Citation

Smith, J. Stephen C., et al. Yield Gains in Major U.S. Field Crops. American Society of Agronomy : Crop Science Society of America : Soil Science Society of America, 2014.