by O.F. Raum ; with an introduction by W. Bryant MumfordPublished for the International institute of African languages & cultures by the Oxford university press1940
edited by M. Fortes and E.E. Evans-PritchardPublished for the International Institute of African Languages & Cultures by the Oxford University Press1940
by Monica Hunter ; with an introduction by General the Right Hon. J. C. SmutsPublished for the International Institute of African Languages & Cultures by the Oxford University Press1936