PT - JOURNAL ARTICLE AU - Donald Last TI - Soil surveys in the classroom DP - 1984 Jan 01 TA - Journal of Soil and Water Conservation PG - 30--31 VI - 39 IP - 1 4099 - http://www.jswconline.org/content/39/1/30.short 4100 - http://www.jswconline.org/content/39/1/30.full