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Sistema de Información Geográfica de la frontera entre México y Estados Unidos

Uniform Title: U.S.- Mexico Border Geographic Information System. Spanish
Other Authors: Geological Survey (U.S.)
Format: Electronic
Language: Spanish
Published: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2008]
Physical Description: 4 unnumbered pages : digital, PDF file.
Series: Fact sheet (Geological Survey (U.S.)) ; 2008-3069.
Subjects:
Online Access: http://purl.access.gpo.gov/GPO/LPS104293