Crawford, Lester M., Harry D. Cleberg, Warren M. Schwecke, David R. Lineback, John H. Nelson, Ralph W. Fogleman, Victor L. Lechtenberg, y Richard E. Stuckey. «Food Safety, Sufficiency, and Security». Council for Agricultural Science and Technology (CAST) (junio 7, 1998). Accedido julio 2, 2026. https://publications.cast-science.org/CAST/article/view/203.