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.
Style de citation Chicago (17e éd.)Western State (Nigeria). Ministry of Economic Planning and Social Development. Statistics Division et Western State (Nigeria). Ministry of Economic Planning and Reconstruction. Statistics Division. Western State of Nigeria Statistical Abstract. Ibadan: The Division, 1968.
Style de citation MLA (8e éd.)Western State (Nigeria). Ministry of Economic Planning and Social Development. Statistics Division et Western State (Nigeria). Ministry of Economic Planning and Reconstruction. Statistics Division. Western State of Nigeria Statistical Abstract. The Division, 1968.