Não informado. (2001). Zoonoses surveillance. Center for Disease Control, Department of Health, Education Welfare.
Chicago-viite (17. p.)Não informado. Zoonoses Surveillance. Atlanta, Ga: Center for Disease Control, Department of Health, Education Welfare, 2001.
MLA-viite (8. p.)Não informado. Zoonoses Surveillance. Center for Disease Control, Department of Health, Education Welfare, 2001.
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