Proposed Canadian Voluntary National Johne's Disease Prevention and Control Program.

由 McKenna, Shawn L. B., Vanleeuwen, John A., Barkema, Herman W., Jansen, Jocelyn T., Hauer, Gerald, Hendrick, Steve H., Côte, Geneviève, Salsberg, Elliot B., Empringham, R. Edward
出版 2006