http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
with particular reference to the cultural and climatic succession in the Upper Zambezi Valley and its tributaries
157 pages : illustrations, maps (1 folded) ; 29 cm.
by J. Desmond Clark. With a chapter on the geology by F. Dixey, and appendixes by H. B. S. Cooke, L. H. Wells and Geoffrey Bond.