Tuberculosis eradication under the accredited-herd plan : supplement 1 to herd list no. 3, list of herds of Ayshires, Guernsey, Holstein-Friesian, and Jersey cattle which have passed one official tuberculin test with a view to being accredited
1920
Tuberculosis eradication under the accredited-herd plan : supplement 1 to herd list no. 3, list of herds of Ayshires, Guernsey, Holstein-Friesian, and Jersey cattle which have passed one official tuberculin test with a view to being accredited
United States. Bureau of Animal Industry
1920
"Contribution from the Bureau of Animal Industry." Rev. to June 30, 1920
