Southern Nigeria. Forestry Dept & Southern Nigeria. Agricultural Dept. Annual report on the Forestry and Agricultural Departments of Southern Nigeria. Govt. Printer].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSouthern Nigeria. Forestry Dept और Southern Nigeria. Agricultural Dept. Annual Report on the Forestry and Agricultural Departments of Southern Nigeria. [Lagos: Govt. Printer].
एमएलए (8वां संस्करण) प्रशस्ति पत्रSouthern Nigeria. Forestry Dept और Southern Nigeria. Agricultural Dept. Annual Report on the Forestry and Agricultural Departments of Southern Nigeria. Govt. Printer].
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.