1. A reconnaissance of the water resources of the central Guanajibo Valley, Puerto Rico Author/Creator: Colón-Dieppa, Eloy, author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1985 Resource Type: Book Access & Availability: Loading
2. Restoration of freshwater in the Cano Tiburones area, Puerto Rico Author/Creator: Zack, Allen L., author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading