1. Source, use, and disposition of freshwater in Puerto Rico, 2005 Author/Creator: Molina-Rivera, Wanda L. Publication/Creation: [Reston, Va.] : [U.S. Dept. of the Interior, U.S. Geological Survey], [2009] Resource Type: Book Access & Availability: Loading
2. Low-flow characteristics at selected sites on streams in northern and central Puerto Rico Author/Creator: Santiago-Rivera, Luis, author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
3. 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
4. Low-flow characteristics at selected sites on streams in southern and western Puerto Rico Author/Creator: Santiago-Rivera, Luis, author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
5. Low-flow characteristics at selected sites on streams in eastern Puerto Rico Author/Creator: Santiago-Rivera, Luis, author Publication/Creation: San Juan, Puerto Rico : U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading