Não informado. (2001). Annual Report on the Department of Agricultural Research, Federation of Nigeria. Federation of Nigeria, Department of Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report on the Department of Agricultural Research, Federation of Nigeria. Lagos: Federation of Nigeria, Department of Agriculture, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report on the Department of Agricultural Research, Federation of Nigeria. Federation of Nigeria, Department of Agriculture, 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.