Não informado. (1992). Studies and researches in veterinary medicine. Pasteur National Institute for Veterinary Medicine.
Chicago-referens (17:e uppl.)Não informado. Studies and Researches in Veterinary Medicine. Bucharest: Pasteur National Institute for Veterinary Medicine, 1992.
MLA-referens (8:e uppl.)Não informado. Studies and Researches in Veterinary Medicine. Pasteur National Institute for Veterinary Medicine, 1992.
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