Western State (Nigeria). Ministry of Economic Planning and Social Development. Statistics Division & Western State (Nigeria). Ministry of Economic Planning and Reconstruction. Statistics Division. (1968). Western State of Nigeria statistical abstract. The Division.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Western State (Nigeria). Ministry of Economic Planning and Social Development. Statistics Division và Western State (Nigeria). Ministry of Economic Planning and Reconstruction. Statistics Division. Western State of Nigeria Statistical Abstract. Ibadan: The Division, 1968.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Western State (Nigeria). Ministry of Economic Planning and Social Development. Statistics Division và Western State (Nigeria). Ministry of Economic Planning and Reconstruction. Statistics Division. Western State of Nigeria Statistical Abstract. The Division, 1968.