Bằng Environment for Development, Resources for the Future, Washington, DC (EUA), Robalino, J, Pfaff, A, Sánchez, G, Alpízar, F, León, C, Rodríguez, C

Tổ chức giáo dục: Centro Agronómico Tropical de Investigación y Enseñanza

Repositorio: Repositorio CATIE