Mart?nez-Melo, J., Humberto Jord?n, Verena Torres, G. Guevara, N. Hern?ndez, L. Brunett, Dayam? Fontes, C. Mazorra, Yohanka Lezcano, and Nieves Cubillas. 2011. “Classification of Dairy Units Belonging to the Basic Units of Cooperative Production in Ciego De Avila, Cuba”. Cuban Journal of Agricultural Science 45 (4). https://cjascience.com/index.php/CJAS/article/view/96.