HERNÁNDEZ MEDINA, E.; ABRUÑA, F.; DEL VALLE, R. Response to Magnesium of Intensively Managed Sun-grown Coffee. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 52, n. 3, p. 185–194, 1968. DOI: 10.46429/jaupr.v52i3.11505. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/11505. Acesso em: 6 dec. 2022.