1:50,000 L.C.B.C./C.B.L.T. [Lake Chad region].
Great Britain.Directorate of Overseas Surveys.
Lake Chad Basin Commission.
Tolworth, Surrey : Directorate of Overseas Surveys,
1978.
Based on air photography taken in May-July 1973, Jany. 1974.
Marginal index to adjoining sheets, map of administrative boundaries and sheet history.
Published for the Lake Chad Basin Commission by the British Government's Ministry of Overseas Development (Directorate of Overseas Surveys).
Printed for D.O.S. by the Ordnance Survey.
Sheets individually named.
Occasional town plan in more detail on verso. (ca. 1:6,000).
Photomaps.
UTM zone 33 grid.
Graphic index in central file (under CHAD)