Milking Machines
Robertson, A.H., Finch, M.W., Breed, Robert S.
Milking Machines VII. further studies on methods of sterilization - Geneva 1922 - 1-36 p. - Milking, Sterilization New York Agricultural Experiment Station. Bulletin No. 492 .
Milking Machines VII. further studies on methods of sterilization - Geneva 1922 - 1-36 p. - Milking, Sterilization New York Agricultural Experiment Station. Bulletin No. 492 .