Abruña F, Vicente-Chandler J, Silva S. The Effect of Different Fertility Levels on Yields of Intensively Managed Coffee in Puerto Rico. JAUPR [Internet]. 1959 Jul. 1 [cited 2024 Nov. 5];43(3):141-6. Available from: https://revistas.upr.edu/index.php/jaupr/article/view/12574