1. Water balance and quantification of total phosphorus and total nitrogen loads entering and leaving the Lago de Cidra, central Puerto Rico Author/Creator: Ramos-Ginés, Orlando, author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1997 Resource Type: Book Access & Availability: Loading
2. Effects of changing irrigation practices on the ground-water hydrology of the Santa Isabel-Juana Díaz area, south central Puerto Rico Author/Creator: Ramos-Ginés, Orlando, author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1994 Resource Type: Book Access & Availability: Loading
3. Hydrology, water quality, and potential alternatives for water-resources development in the Río Majada and Río Lapa Basins near the Albergue Olímpico, southern Puerto Rico Author/Creator: Ramos-Ginés, Orlando, author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1994 Resource Type: Book Access & Availability: Loading