PT - JOURNAL ARTICLE AU - David B. Baker TI - Environmental extension: A key to nonpoint-source pollution abatement DP - 1989 Jan 01 TA - Journal of Soil and Water Conservation PG - 8--8 VI - 44 IP - 1 4099 - http://www.jswconline.org/content/44/1/8.short 4100 - http://www.jswconline.org/content/44/1/8.full