The societies of Southern Africa in the 19th and 20th centuries. vol. 12. - London : The Institute, 1981. - Its Collected seminar papers ; no. 28 . - Collected seminar papers (University of London. Institute of Commonwealth Studies) ; no. 28. . Subjects--Topical Terms: Societies -- Africa, Southern.--Societies -- Africa, Southern. Subjects--Geographic Terms: Africa, Southern -- Manners and customs.--Africa, Southern -- Manners and customs.