Bechuanaland protectorate, [showing routes of Gaitskill, 1952 and Curry & Van Der Post 1950]
[Tolworth] :  Directorate of Colonial Surveys, 
1953.
"D.O.S. (Misc.) 89 A".
Overprint on Ordnance Survey base map, 1935.
With: Report of a mission to the Bechuanaland Protectorate to investigate the possibilities of economic development in the Western Kalahari, 1952. - London: HMSO, 1954.