In 2 vols.
Bibliography: p.247-250. _ Includes index.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
West Africa since AD 1000 : history notes by F. K. Buah. ISBN 0333155785. Published by Macmillan in 1974. Publication and catalogue information, links to buy online and reader comments.
