Book Chapter
International Center for Tropical Agriculture
Biophysical and socioeconomic processes understood, principles, concepts and methods developed for protecting and improving the health and fertility of soils: Output 1. 2005. In: Centro Internacional de Agricultura Tropical. TSBF Institute. Integrated Soil Fertility Management in the Tropics: Project PE-2: Annual Report 2005. CIAT, Cali, CO. p. 24-113.