Geologic shaded relief map of Venezuela / by Paul C. Hackley [and three others] ; U.S. Department of the Interior, U.S. Geological Survey ; prepared in cooperation with the Escuela Geología, Minas y Geofísica, Universidad Central de Venezuela and the Fundación Venezolana de Investigaciones Sismológicas.
Publication Info.
[Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2005.