Elsas, Oscar, 1871-1924. "Letter from Oscar Elsas to James A. Emery, National Council for Industrial Defense." Georgia Institute of Technology. Library. Archives, Records Management and Digital Curation Department . 1915-02-11, https://exhibit-archive.library.gatech.edu/fulton_bag/item399f.html?collection=ms004&filename=ms004-097.xml.

Elsas, Oscar, 1871-1924 (1915-02-11). Letter from Oscar Elsas to James A. Emery, National Council for Industrial Defense. Retrieved from https://exhibit-archive.library.gatech.edu/fulton_bag/item399f.html?collection=ms004&filename=ms004-097.xml

Elsas, Oscar, 1871-1924. "Letter from Oscar Elsas to James A. Emery, National Council for Industrial Defense." 1915-02-11. July 30, 2025. https://exhibit-archive.library.gatech.edu/fulton_bag/item399f.html?collection=ms004&filename=ms004-097.xml.