Circular: “Warning! Kill Flies Now! Suggestions for Anticipating the Dangers of the Common House Fly by Destroying the Survivors of Last Year’s Crop," February 1914, D00164. Missouri Historical Society Library and Research Center.

Circular: “Warning! Kill Flies Now! Suggestions for Anticipating the Dangers of the Common House Fly by Destroying the Survivors of Last Year’s Crop," February 1914, D00164. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/2714 Accessed September 19, 2024.