* "Herero Heroes: A Socio-Political History of the Herero of Namibia 1890 - 1923", J.B. Gewald, Oxford, Cape Town, Athens, OH, 1999.
* "Herero Heroes: A Socio-Political History of the Herero of Namibia 1890—1923", J.B. Gewald, Oxford, Cape Town, Athens OH, 1999.