PT - JOURNAL ARTICLE AU - Floyd E. Heft TI - The dilemma of conservation DP - 1984 Sep 01 TA - Journal of Soil and Water Conservation PG - 291--293 VI - 39 IP - 5 4099 - http://www.jswconline.org/content/39/5/291.short 4100 - http://www.jswconline.org/content/39/5/291.full