Bacterial flora of milking machines
Robertson, A.H.
Bacterial flora of milking machines - Geneva 1924 - 1-52 p. - Milking, Machines New York Agricultral Experiment Station. Technical Bulletin No. 105 .
Bacterial flora of milking machines - Geneva 1924 - 1-52 p. - Milking, Machines New York Agricultral Experiment Station. Technical Bulletin No. 105 .