Western Region (Nigeria). Forest Dept. Annual report on the forest administration of the Western Region of Nigeria. Govt. Printer.
Chicagoスタイル(17版)引用形式Western Region (Nigeria). Forest Dept. Annual Report on the Forest Administration of the Western Region of Nigeria. Ibadan: Govt. Printer.
MLA(8版)引用形式Western Region (Nigeria). Forest Dept. Annual Report on the Forest Administration of the Western Region of Nigeria. Govt. Printer.
警告: この引用は必ずしも正確ではありません.