Edited by A. W. Exell, A. Fernandes and H. Wild ; published on behalf of the Governments of Portugal, Malawi, Zambia, Rhodesia and the United Kingdom by the Crown Agents for Oversea Governments and Administrations Inglês
London : 1960-1967, Crown Agents for Oversea Governments and Administrations
2 vol., 4 parts : il.; 24 cm + 1 supplement (68 p.) com 2 mapas