Prehistoric Rhodesia; an examination of the historical, ethnological and archaeological evidencesas to the origin and age of the rock mines and stone buildings, with a gazetteer of mediaeval south -east Africa, 915 A.D. to 1760 A.D., and the countries of the Monomotapa, Manica, Sabia, Quiteve, Sofala, and Mozambique
Hall, R. N, (Richard Nicklin. 1853-1914