Phenotypical differentiation of some Ethiopian coffees in the collection of CATIE [Tropical Agricultural Research and Training CenterTurrialba, Costa Rica. [Spanish
Effect of cutting frequency on the yield, chemical composition and digestibility in vitro of star grass (Cynodon nlimfuensis) and grama grass (Axonopus micay). [Spanish
Diagnosis of the state of mineral nutrition of the soil, forage and beef cattle in the Central American Livestock School farm during the dry season [Costa Rica. [Spanish