The soils of the Biu-Mubi area North-Eastern state, Nigeria : a r eport on the reconnaissance soil survey of the 1:250,000 sheet 37 (Biu) and 38 (Mubi) and the 1:100,000 sheets 133 and 154 (Biu plateau) - Carroll, D.M.; Hope, W.A. (Zaria, Nigeria : Ahmadu Bello University, 1974)
Includes bibliographical references.
Keywords: Soils -- Agricultural chemical content