Vargas-Leitón, Bernardo, Oscar Solís-Guzmán, Fernando Sáenz-Segura, and Héctor León-Hidalgo. 2013. “Characterization and Classification of Dairy Herds Using Multivariate Analysis in Costa Rica”. Agronomía Mesoamericana 24 (2):257-75. https://doi.org/10.15517/am.v24i2.12525.