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

di 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
Pubblicazione 2006