LANDRAU, JR., P.; SAMUELS, G.; ALERS-ALERS, S.; GONZÁLEZ-MOLINA, C. The Influence of Fertilizers on Tobacco Yields. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 43, n. 1, p. 56–68, 1959. DOI: 10.46429/jaupr.v43i1.12544. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12544. Acesso em: 8 feb. 2023.