Fornaris-Rullán, G., I. Beauchamp de Caloni, and L. Avilés-Rodríguez. “Head Characteristics and Acceptability of Cabbage Cultivars Grown in Southern Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico, vol. 73, no. 4, Oct. 1989, pp. 367-73, doi:10.46429/jaupr.v73i4.6315.