Benue Valley survey appraisal mission /
Great Britain.Directorate of Overseas Surveys.
[Tolworth] : Directorate of Overseas Surveys,
1972.
Loose maps only, wanting report.
Map 5 [3155D] : Communications -- Map 6 [3155C] : Development areas -- Map 11 [3155B] : Meteorological -- Map 12 [3155E] : Catchment areas and possible storage dam sites -- Map 14 [3155A] : Reserves and watershed protection -- Map 15 [3155G] : Doma Forest Reserve, soil map, 1:100,000