PT - JOURNAL ARTICLE AU - Wesley D. Seitz TI - A conservation tariff DP - 1981 May 01 TA - Journal of Soil and Water Conservation PG - 120--121 VI - 36 IP - 3 4099 - http://www.jswconline.org/content/36/3/120.short 4100 - http://www.jswconline.org/content/36/3/120.full