00979cam a22002891 4500 gs 51000007 DLC 20260227111357.0 900419s1949 nr ab b 000 0 eng gs 51000007 (OCoLC)21397239 DLC TxU TxU DLC premarc QE327.N5 K5 556.69 King, Basil Charles. The geology of the Osi area, Ilorin Province, by B.C. King and A.M.J. de Swardt. [Kaduna] 1949. 92 p. illus., maps (1 fold. in pocket) 26 cm. Nigeria. Geological Survey. Bulletin no. 20 "List of works to which reference is made": p. 63-65. One folded map in pocket. Geology Nigeria Ilorin (Province) Petrology Nigeria Ilorin (Province) Swardt, A. M. J. de, joint author. Bulletin (Geological Survey of Nigeria) ; no. 20. 28514 28514