Krapf, Rebmann, Livingstone & Erhardt's map [of Central Africa, showing their routes]. 1849-56.
Krapf, Johann Ludwig.
Erhardt.
Livingstone, David,1813-1873.
Rebmann, Johann.
Kristiania : P.T. Malling,
[1858]
In: Gjennem det Mørke Fastland...af H.M. Stanley...Oversat af T. Krag og B. Geelmuyden. Del. 1.