Παραπομπή APA

Calvo-Brenes, G., & Mora-Molina, J. (2012). Fecal contamination in several rivers of the Greater Metropolitan Area and the Osa Peninsula.

Παραπομπή Chicago Style

Calvo-Brenes, Guillermo, και Jesús Mora-Molina. Fecal Contamination in Several Rivers of the Greater Metropolitan Area and the Osa Peninsula. 2012.

Παραπομπή MLA

Calvo-Brenes, Guillermo, και Jesús Mora-Molina. Fecal Contamination in Several Rivers of the Greater Metropolitan Area and the Osa Peninsula. 2012.

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