This eleven-part topographic map of Douala was published in 1965 by the Ministère des finances et du plan of Cameroon. It is printed in French.
(1-1) Douala 11 
(1-2) Douala 10 
(1-3) Douala 9 
(1-4) Douala 8 
(2-1) Douala 7 
(2-2) Douala 6 
(2-3) Douala 5 
(2-4) Douala 4 
(3-2) Douala 1 
(3-3) Douala 2 
(3-4) Douala 3
More maps of Cameroon are available from TROPICARTA (requires Chomikuj account).