Sharr, E. and Opalka. "A report on the bacteriological and physical examination of lung tuberculosis in cattle." State Board of Live Stock Commissioners of Illinois Bulletin No. 5, March 1912.

Sharr, E. and Opalka. "A report on the bacteriological and physical examination of lung tuberculosis in cattle." State Board of Live Stock Commissioners of Illinois Bulletin No. 5, March 1912., 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/263197 Accessed December 21, 2025.