The prehistoric cultures of the Horn of Africa; an analysis of the stone age cultural and climatic succession in the Somalilands and eastern parts of Abyssinia, by J. D. Clark. With a foreword by M. C. Burkitt. New pref. by the author.
- New York, Octagon Books, 1972.
xxxix, 385 p. illus. 27 cm.
- Cambridge. University. Museum of Archaeology and Ethnology. Occasional publications, 2.