SAMUELS, G.; RODRÍGUEZ, J. P.; LANDRAU, JR., P. The Response of Cotton to Fertilizers in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 43, n. 2, p. 89–102, 1959. DOI: 10.46429/jaupr.v43i2.12547. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12547. Acesso em: 7 oct. 2022.