Johnston, H. H. (1886). The Kilima-Njaro expedition: A record of scientific exploration in eastern equatorial Africa. And a general description of the natural history, languages, and commerce of the Kilima-Njaro district [Eastern Africa]. London: K. Paul, Trench, and Co..MLA Citation
Johnston, Harry Hamilton. The Kilima-Njaro Expedition: A Record of Scientific Exploration in Eastern Equatorial Africa. And a General Description of the Natural History, Languages, and Commerce of the Kilima-Njaro District [Eastern Africa]. London: K. Paul, Trench, and Co., 1886.