APA

Gómez-Gómez F., Caguas (P.R.) & Geological Survey (U.S.). (2001). Surface-water, water-quality, and ground-water assessment of the Municipio of Caguas, Puerto Rico, 1997-99. San Juan, P.R: U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago

Gómez-Gómez Fernando, Caguas (P.R.) and Geological Survey (U.S.). 2001. Surface-water, water-quality, and ground-water assessment of the Municipio of Caguas, Puerto Rico, 1997-99. San Juan, P.R: U.S. Dept. of the Interior, U.S. Geological Survey.

Harvard

Gómez-Gómez F., Caguas (P.R.) and Geological Survey (U.S.). (2001). Surface-water, water-quality, and ground-water assessment of the Municipio of Caguas, Puerto Rico, 1997-99. San Juan, P.R: U.S. Dept. of the Interior, U.S. Geological Survey.

MLA

Gómez-Gómez Fernando, Caguas (P.R.) and Geological Survey (U.S.). Surface-water, water-quality, and ground-water assessment of the Municipio of Caguas, Puerto Rico, 1997-99. San Juan, P.R: U.S. Dept. of the Interior, U.S. Geological Survey. 2001.