PT - JOURNAL ARTICLE AU - Ann M. Lewandowski TI - Costs of groundwater nitrate contamination AID - 10.2489/jswc.63.3.92A DP - 2008 May 01 TA - Journal of Soil and Water Conservation PG - 92A--92A VI - 63 IP - 3 4099 - http://www.jswconline.org/content/63/3/92A.short 4100 - http://www.jswconline.org/content/63/3/92A.full