LUGO-LÓPEZ, M. A.; PÉREZ-ESCOLAR, Raúl. Attempts to Explain the Variability in the Cation-Exchange Capacity of Soils in Terms of Particle Size and Organic-Matter Levels. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 53, n. 4, p. 369–373, 1969. DOI: 10.46429/jaupr.v53i4.11150. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/11150. Acesso em: 22 dec. 2024.