PT - JOURNAL ARTICLE AU - Clay Ogg TI - The vanishing prairie DP - 2006 Jan 01 TA - Journal of Soil and Water Conservation PG - 18A--21A VI - 61 IP - 1 4099 - http://www.jswconline.org/content/61/1/18A.short 4100 - http://www.jswconline.org/content/61/1/18A.full