Contagious abortion of cows
MacNeal, W.J., Mumford, H.W.
Contagious abortion of cows - Urbana 1911 - 531-543 p. - Cows Illinois Agricultural Experiment Station. Bulletin No. 152 .
Contagious abortion of cows - Urbana 1911 - 531-543 p. - Cows Illinois Agricultural Experiment Station. Bulletin No. 152 .