Brief No. 6 in Biotechnology and Genetic Resource Policies: Briefs 1-6, eds. Philip G. Pardey and Bonwoo Koo, (Washington, DC: International Food Policy Research Institute (IFPRI), IFPRI Research at a Glance, January 2003)

Also published in Spanish as "Conservación de Recursos Genéticos para la Agricultura: Cálculo de los Costos," in Políticas Sobre Biotecnología y Recursos Genéticos (Resumen 6), eds. Philip G. Pardey and Bonwoo Koo,  (Washington, DC: International Food Policy Research Institute (IFPRI), Panorama de la Investigación, January 2003)