The Chad basin: Geology and water supply,
Raeburn, Colin.
The Chad basin: Geology and water supply, - [London] Published by authority of the Nigerian government, 1934. - 61 p. illus., maps. (part fold.) fold. diagr. 26 cm.
gs 34000147
Geology--Nigeria--Chad Basin.
Water-supply--Nigeria--Chad Basin.
QE327.N5 / R28
The Chad basin: Geology and water supply, - [London] Published by authority of the Nigerian government, 1934. - 61 p. illus., maps. (part fold.) fold. diagr. 26 cm.
gs 34000147
Geology--Nigeria--Chad Basin.
Water-supply--Nigeria--Chad Basin.
QE327.N5 / R28