1. El ciclo de agua Author/Creator: Nemo, Stefanie, author Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, [2013?] Resource Type: Video or Visual Material Access & Availability: Loading
2. La ciencia del agua para escuelas Publication/Creation: [Atlanta, Ga.] : USGS, [date of publication not identified] Resource Type: Book Access & Availability: Loading
3. Compuestos seleccionados de sedimentos del lecho y resultados de toxicidad en el agua en los arroyos westside, San Antonio, Texas, 2014 Publication/Creation: Austin, TX : U.S. Department of the Interior, U.S. Geological Survey, 2016 Resource Type: Book Access & Availability: Loading