Dyfyniad APA

Calvo-Brenes, G. (2013). New methodology for evaluating the surface waters quality to be used as Class 2 in Costa Rica.

Dyfyniad Arddull Chicago

Calvo-Brenes, Guillermo. New Methodology for Evaluating the Surface Waters Quality to Be Used As Class 2 in Costa Rica. 2013.

Dyfyniad MLA

Calvo-Brenes, Guillermo. New Methodology for Evaluating the Surface Waters Quality to Be Used As Class 2 in Costa Rica. 2013.

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