1. Geochemical properties and saline-water intrusion in the Valle de Yabucoa alluvial aquifer, southeastern Puerto Rico Author/Creator: Troester, Joseph W., author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
2. Geology of Isla Mona, Puerto Rico, and notes on age of Mona Passage Author/Creator: Kaye, Clifford A. 1916-1985, (Clifford Alan), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1959 Resource Type: Book Access & Availability: Loading
3. Geology of the San Juan metropolitan area, Puerto Rico Author/Creator: Kaye, Clifford A. 1916-1985, (Clifford Alan), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1959 Resource Type: Book Access & Availability: Loading
4. Ground-water resources of alluvial valleys in northeastern Puerto Rico : Río Espíritu Santo to Río Demajagua area Author/Creator: Pérez-Blair, Francisco, author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1997 Resource Type: Book Access & Availability: Loading
5. Ground-water resources of the Caguas-Juncos Valley, Puerto Rico Author/Creator: Puig, Juan C., author Publication/Creation: San Juan, Puerto Rico : U.S. Department of the Interior, U.S. Geological Survey, 1993 Resource Type: Book Access & Availability: Loading