1827
Vandermaelen, Philippe, 1795-1869
1:2m
1889
Pelet, Paul, 1849-1927
1:2m
1950
North-Vietnamese Geography Department
1:100k
1864
MOUHOT, Alexandre Henri.
1965
The Associated Press
1893
LALANNÉ, Ernest.
1900
Larousse
1954
St. Louis Post dispatch
1829
Hall, S. (Sidney)
1:3m
1858
Arrowsmith, John, 1790-1873
1:2m