CHARDÓN, Carlos E. THE VARIETAL REVOLUTION IN PORTO RICO. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 11, n. 1-4, p. 9–333, 1927. DOI: 10.46429/jaupr.v11i1-4.15061. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/15061. Acesso em: 28 mar. 2024.