La Grande Chasse au pays des Pygmées |
1952 |
Congoland : a Book for Young People |
1915 |
Red Rubber : The story of the Rubber slave trade flourishing on the Congo in the year of grace 1906 |
1907 |
Red Rubber : The story of the Rubber slave trade flourishing on the Congo in the year of grace 1907 |
1907 |
Red Rubber : the story of the Rubber slave trade flourishing on the Congo in the year of grace 1906 |
1906 |