Whitaker, George M. "The milk supply of Boston and other New Englad cities." U.S. Department of Agriculture, Burean of Animal Industry, Bulletin No. 20, 1898., 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/263309 Accessed April 09, 2026.