Article- "The Economic Value of birds" by F.J. Wenninger- in the American Midland Naturalist, 1909/12

Article- "The Economic Value of birds" by F.J. Wenninger- in the American Midland Naturalist, 1909/12, CWEN 1/22, Box: CWEN 1, Folder: 22. Francis Wenninger Papers, WEN. University of Notre Dame Archives. https://archivesspace.library.nd.edu/repositories/2/archival_objects/744814 Accessed March 28, 2026.