LUGO LÓPEZ, M. A.; MARTÍNEZ, M. B.; RIERA, A. R. Morphological and physicochemical properties of various tropical soils from east-central Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 36, n. 2, p. 167–178, 1952. DOI: 10.46429/jaupr.v36i2.12797. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12797. Acesso em: 4 dec. 2022.