Same, labeled International Botanical Congress, Cambridge, 1930 . International Congress of Comparative Pathology, (ninth) Rome, 1930, 1939

Same, labeled International Botanical Congress, Cambridge, 1930 . International Congress of Comparative Pathology, (ninth) Rome, 1930, 1939, Box: 12. Robert Stanley Breed papers, 22-2-662. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/53232 Accessed January 01, 2026.