1. Enabling Documents of the Conservation Trust of Puerto Rico. Geographic Origin: Puerto Rico Publisher: Conservation Trust of Puerto Rico Date: 1968
2. North Coast Superaqueduct. Puerto Rico. Geographic Origin: Puerto Rico Publisher: Dick Corporation Date: 1996
3. Permite que la noche llegue... evita la contaminación lumínica. Conserva nuestros recursos costeros. Geographic Origin: Puerto Rico Publisher: National Oceanic and Atmospheric Administration (NOAA) - United States Department of CommerceDepartamento de Recursos Naturales y Ambientales (DRNA) - Estado Libre Asociado de Puerto Rico Date: 2010-2015