Araya-Ulloa, A., & Calvo-Brenes, G. (2017). Ecological vulnerability and water quality diagnosis of the stream La Central, Pacayas de Alvarado, Costa Rica.
शिकागो स्टाइल उद्धरणAraya-Ulloa, Andrea, और Guillermo Calvo-Brenes. Ecological Vulnerability and Water Quality Diagnosis of the Stream La Central, Pacayas De Alvarado, Costa Rica. 2017.
एमएलए उद्धरणAraya-Ulloa, Andrea, और Guillermo Calvo-Brenes. Ecological Vulnerability and Water Quality Diagnosis of the Stream La Central, Pacayas De Alvarado, Costa Rica. 2017.
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