Não informado. Bulletin of Animal Health and Production in Africa. Inter-African Bureau for Animal Resources.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of Animal Health and Production in Africa. Nairobi: Inter-African Bureau for Animal Resources.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of Animal Health and Production in Africa. Inter-African Bureau for Animal Resources.
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