COWGILL, H. B. CROSS-POLLINATION OF SUGAR CANE. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 3, n. 1, p. 1–5, 1919. DOI: 10.46429/jaupr.v3i1.15152. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/15152. Acesso em: 28 apr. 2024.