RIVERA, Edmundo; SILVA, Servando; VICENTE-CHANDLER, José. Distribution of Pigeon Peas, Cassava, Coffee and Grass Roots in an Ultisol. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 67, n. 3, p. 278–285, 1983. DOI: 10.46429/jaupr.v67i3.7720. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/7720. Acesso em: 29 mar. 2024.