Book Chapter
International Center for Tropical Agriculture
Biophysical and socioeconomic processes understood, principles and concepts developed for protecting and improving the health and fertility of soils: Output 1. 2004. In: Centro Internacional de Agricultura Tropical. TSBF Institute. Integrated Soil Fertility Management in the Tropics: Project PE-2: Annual Report 2004. CIAT, Cali, CO. p. 13-98.