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

od 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
Izdano 2006