"Crossing improved breeds of swine with the common hogs of Florida." U.S. Department of Agriculture, Bureau of Animal Industry, Circular No. 4, 1895.

"Crossing improved breeds of swine with the common hogs of Florida." U.S. Department of Agriculture, Bureau of Animal Industry, Circular No. 4, 1895., Box: 5. Veterinary Reprint and Pamphlet Collection, 24-4-3369. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/263397 Accessed December 18, 2025.