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Pressure water in the Chad Formation of Bornu and Dikwa emirates, north-eastern Nigeria : with 12 plates and 34 text figures
Barber, W., (1965)
Education and modernism in Bornu
Peshkin, Alan, (1970)
Savannah nomads : a study of the Wodaabe pastoral Fulani of Western Bornu Province Northern Region, Nigeria
Stenning, Derrick J., (1959)