1948
Hammond, C.S.
1:4m
1897
Venezuela-British Guiana Boundary Commission
1:2m
1897
Venezuela-British Guiana Boundary Commission
1:2m
1898
HUGHES, William F.R.G.S
1832
Arrowsmith, John
1:5m
1921
Caracas : Litografía del comercio
1852
Humboldt, Alexander von
1875
Brown, Charles B.
1:1m
1920
Forest, J.
1:2m
1878
RECLUS, Élisée.