J W Copland. (1987). New castle disease in poultry: A new food pllet vaccine. Australian centere for international agricultural research.
Παραπομπή Chicago StyleJ W Copland. New Castle Disease in Poultry: A New Food Pllet Vaccine. Australian centere for international agricultural research, 1987.
Παραπομπή MLAJ W Copland. New Castle Disease in Poultry: A New Food Pllet Vaccine. Australian centere for international agricultural research, 1987.
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