-
1by Zahm, J. A. (John Augustine), 1851-1921“...Orinoco River (Venezuela and Colombia)...”
Published 1910
Book -
2by Pérez Triana, Santiago, 1858-1916“...Orinoco River (Venezuela and Colombia) Description and travel....”
Published 1902
Book -
3by Nordin, Carl F.Subjects: “...Sand waves Orinoco River Watershed (Venezuela and Colombia)...”
Published 1989
Government Document Book -
4Published 1977“...Orinoco River Valley (Venezuela) Abstracts....”
Book