Schroeder, E.C. and W.E. Cotton. "Experiments concerning tuberculosis." United States Department of Agriculture, Bureau of Animal Industry, Bulletin No. 52, pt. 3, 1905.

Schroeder, E.C. and W.E. Cotton. "Experiments concerning tuberculosis." United States Department of Agriculture, Bureau of Animal Industry, Bulletin No. 52, pt. 3, 1905., Box: 4. Veterinary Reprint and Pamphlet Collection, 24-4-3369. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/263188 Accessed December 20, 2025.