DELFEL, N. E.; CABANILLAS, E.; ORTIZ-TORRES, E. A Small-Scale Technique for Evaluation of the Effect of Spray Oils and Other Materials on Sugarcane Yields. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 46, n. 4, p. 328–333, 1962. DOI: 10.46429/jaupr.v46i4.12352. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12352. Acesso em: 17 aug. 2022.