Mohler, John R. "Infectiveness of milk of cows which have reacted to the tuberculin test." United States Department of Agriculture, Bureau of Animal Industry, Bulletin No. 44, 1903.

Mohler, John R. "Infectiveness of milk of cows which have reacted to the tuberculin test." United States Department of Agriculture, Bureau of Animal Industry, Bulletin No. 44, 1903., Box: 3. Veterinary Reprint and Pamphlet Collection, 24-4-3369. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/262896 Accessed December 25, 2025.