ROLDÁN, Julián. Fertility Status of Organic Soils in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 43, n. 4, p. 255–267, 1959. DOI: 10.46429/jaupr.v43i4.12568. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12568. Acesso em: 1 may. 2024.