Anne Cipriano Venzon, ed., The United States in the First World War: An Encyclopedia (Routledge, 1999), 203–4 available onlineDiarsipkan 2023-07-28 di Wayback Machine., accessed January 2, 2013
Anne Cipriano Venzon, ed., The United States in the First World War: An Encyclopedia (Routledge, 1999), 203–4 available onlineDiarsipkan 2023-07-28 di Wayback Machine., accessed January 2, 2013