Nigeria. Dept. of Veterinary Research. Annual report of the Department of Veterinary Research of the Federation of Nigeria. Federal Govt. Printer.
Παραπομπή σε μορφή Chicago (17η εκδ.)Nigeria. Dept. of Veterinary Research. Annual Report of the Department of Veterinary Research of the Federation of Nigeria. Lagos: Federal Govt. Printer.
Παραπομπή σε μορφή MLA (8th εκδ.)Nigeria. Dept. of Veterinary Research. Annual Report of the Department of Veterinary Research of the Federation of Nigeria. Federal Govt. Printer.
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