1905
Great Britain. General Staff. Topographical Section.
1876
CHAILLÉ-LONG, Charles Bey
1900
F.A. Brockhaus
1:3m
1885
Simon Schropp (J.H. Neumann)
1894
PRÉVILLE, A. de.
1896
NYS, Fernand.
1871
JONVEAUX, Émile.
1908
Great Britain. General Staff. Topographical Section.
1900
Stanley, Henry Morton
1:2m
1896
BROWN, Robert M.A., Ph.D