EN
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Commission for Environmental Cooperation (CEC). 2004. “North American Environmental Atlas - Wetlands”. World Wildlife Fund US, Global Lakes and Wetlands Database, Level 3. Ed. 1.0, Vector digital data [1:10,000,000]. Lehner, B. and Doell, P. (2004): Development and validation of a global database of lakes, reservoirs and wetlands. Journal of Hydrology 296/1-4: 1-22. Available at https://www.cec.org/north-american-environmental-atlas/wetlands/

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ES
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Comisión para la Cooperación Ambiental (CCA). 2004. “Atlas ambiental de América del Norte - Humedales”. World Wildlife Fund US, Global Lakes and Wetlands Database, Nivel 3. Ed. 1.0, Datos digitales vectoriales [1:10,000,000]. Lehner, B. and Doell, P. (2004): Development and validation of a global database of lakes, reservoirs and wetlands. Journal of Hydrology 296/1-4: 1-22. Disponible en https://www.cec.org/es/atlas-ambiental-de-america-del-norte/humedales/

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FR
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Commission de coopération environnementale (CCE). 2004. «Atlas environnemental de l'Amérique du Nord - Terres humides». World Wildlife Fund US, Global Lakes and Wetlands Database, Niveau 3. Ed. 1.0, Données numériques vectorielles [1:10 000 000]. Lehner, B. and Doell, P. (2004): Development and validation of a global database of lakes, reservoirs and wetlands. Journal of Hydrology 296/1-4: 1-22. Disponible à l'adresse suivante: https://www.cec.org/fr/atlas-environnemental-de-lamerique-du-nord/terres-humides/

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