Vega-Corrales, Luis A., and Carolina Marín-Vindas. 2014. “Evaluation of Escherichia Coli Concentrations in Crassostrea Gigas and Seawater in Two Oyster Growing Areas in the Gulf of Nicoya, Costa Rica”. Journal of Marine and Coastal Sciences 6 (October): 155-66. https://doi.org/10.15359/revmar.6.11.