PT - JOURNAL ARTICLE AU - Christoph M. Gross AU - Jorge A. Delgado AU - Shaun P. McKinney AU - Harbans Lal AU - Harris Cover AU - Marvin J. Shaffer TI - Nitrogen Trading Tool to facilitate water quality credit trading AID - 10.2489/jswc.63.2.44A DP - 2008 Mar 01 TA - Journal of Soil and Water Conservation PG - 44A--45A VI - 63 IP - 2 4099 - http://www.jswconline.org/content/63/2/44A.short 4100 - http://www.jswconline.org/content/63/2/44A.full