TY - SER TI - Journal of Soil and Water Conservation SN - 0022-4561 PY - 2009/// CY - Ankeny PB - Soil and Water Conservation Society KW - Agricultura KW - Suelo N1 - http://www.jswconline.org/content/64/5/local/front-matter.pdf Full Text (PDF Format Only) and Abstracts ER -