Brief Assessment of the Presence of Diatoms and Their Relationship with Some Physical and Chemical Parameters in the Pirro River, Heredia, Costa Rica. Uniciencia [Internet]. 2017 Jul. 29 [cited 2024 Apr. 28];31(2):99-109. Available from: https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/9624