The Harvester World: Volume 45, number 1, January 1954 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

amp;

in “Science for the People” on Manifold

May auction catalog - Prag collection est-Falcone collection est-Ken prag collection

International Harvester General Catalog -- No. 49 -- 1949 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

International Harvester General Catalog -- No. 40 -- 1940 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

Kitty of the rosesRalph Henry Barbour

International Harvester General Catalog -- No. 27 -- 1927 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

The Harvester World: Volume 45, number 1, January 1954 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

The Project Gutenberg eBook of Agricultural Implements and Machines in the Collection of the National Museum of History and Technology, by John T. Schlebecker

The Harvester World: Volume 9, number 1, January 1918 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

Bibliography - A Companion to Public History - Wiley Online Library