APA (7th ed.) Citation

Schepers, J. S., & Raun, W. (2008). Nitrogen in agricultural systems. American Society of Agronomy : Crop Science Society of America : Soil Science Society of America.

Chicago Style (17th ed.) Citation

Schepers, James Stuart, and William Raun. Nitrogen in Agricultural Systems. Madison, Wis.: American Society of Agronomy : Crop Science Society of America : Soil Science Society of America, 2008.

MLA (9th ed.) Citation

Schepers, James Stuart, and William Raun. Nitrogen in Agricultural Systems. American Society of Agronomy : Crop Science Society of America : Soil Science Society of America, 2008.