Western Region (Nigeria). Forest Dept. Annual report on the forest administration of the Western Region of Nigeria. Govt. Printer.
Chicago-referens (17:e uppl.)Western Region (Nigeria). Forest Dept. Annual Report on the Forest Administration of the Western Region of Nigeria. Ibadan: Govt. Printer.
MLA-referens (8:e uppl.)Western Region (Nigeria). Forest Dept. Annual Report on the Forest Administration of the Western Region of Nigeria. Govt. Printer.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.