The Tenth Winton M. Blount Postal History Symposium: World War I and Its Immediate Aftermath, Select PapersDOI: info:10.5479/si.19706152Smithsonian Institution Scholarly Press104
Smith, Susan N., editor. 2022. The Tenth Winton M. Blount Postal History Symposium: World War I and Its Immediate Aftermath, Select Papers. Washington, DC: Smithsonian Institution Scholarly Press. In Smithsonian Contributions to History and Technology, 59. https://doi.org/10.5479/si.19706152.