Rotberg, Robert I. Joseph Thomson and the exploration of Africa / by Robert I. Rotbe rg. - London : Chatto & Windus, 1971. - 300 p. : 4 plates, ill., maps, ports ; 23 cm. Includes bibliographical references (p. [330]-345). ISBN: 0701115440. Subjects--Personal Names: Thomson, Joseph, 1858-1895. -------- Subjects--Geographic Terms: Africa, Central -- Discovery and exploration. Dewey Class. No.: AF 916 THO/ROT