Carvajal Pérez, L.A. et al. 2019. Cost of production of bovine milk in three silvopastoral systems: alder (Alnus acuminata), acacia (Acacia melanoxylon) and a control with forage mix. Tierra Infinita. 5, 1 (Dec. 2019), 118–123. DOI:https://doi.org/10.32645/26028131.964.