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.
Čikaški stil citiranja (17. izdanje)Western State (Nigeria). Ministry of Economic Planning and Social Development. Statistics Division i Western State (Nigeria). Ministry of Economic Planning and Reconstruction. Statistics Division. Western State of Nigeria Statistical Abstract. Ibadan: The Division, 1968.
MLA način citiranja (8. izdanje)Western State (Nigeria). Ministry of Economic Planning and Social Development. Statistics Division i Western State (Nigeria). Ministry of Economic Planning and Reconstruction. Statistics Division. Western State of Nigeria Statistical Abstract. The Division, 1968.