________ and A. Zeissig. "Johnin versus avian tuberculosis as a diagnostic agent for paratuberculosis (Johne's Disease) of cattle." Reprinted from Journal of the American Veterinary Medical Association, Vol.LXXIV, No.7, June 1929.

________ and A. Zeissig. "Johnin versus avian tuberculosis as a diagnostic agent for paratuberculosis (Johne's Disease) of cattle." Reprinted from Journal of the American Veterinary Medical Association, Vol.LXXIV, No.7, June 1929., Box: 2. Veterinary Reprint and Pamphlet Collection, 24-4-3369. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/262685 Accessed December 29, 2025.