PT - JOURNAL ARTICLE AU - Robert R. Shaw TI - Managing the Land: A technology perspective DP - 1991 Nov 01 TA - Journal of Soil and Water Conservation PG - 406--408 VI - 46 IP - 6 4099 - http://www.jswconline.org/content/46/6/406.short 4100 - http://www.jswconline.org/content/46/6/406.full