López, E., Ugalde, F.J., Contreras, R. and Barradas, A. 2006. Farmer’s bean seed production in two municipalities of Veracruz, Mexico. Agronomía Mesoamericana. 12, 1 (Jan. 2006), 9–13. DOI:https://doi.org/10.15517/am.v12i1.17241.