Elsas, Oscar, 1871-1924. "Letter from Oscar Elsas to John Y. Phillips." Georgia Institute of Technology. Library. Archives, Records Management and Digital Curation Department . 1915-05-01, https://exhibit-archive.library.gatech.edu/fulton_bag/item14e1.html?collection=ms004&filename=ms004-108.xml.

Elsas, Oscar, 1871-1924 (1915-05-01). Letter from Oscar Elsas to John Y. Phillips. Retrieved from https://exhibit-archive.library.gatech.edu/fulton_bag/item14e1.html?collection=ms004&filename=ms004-108.xml

Elsas, Oscar, 1871-1924. "Letter from Oscar Elsas to John Y. Phillips." 1915-05-01. June 25, 2025. https://exhibit-archive.library.gatech.edu/fulton_bag/item14e1.html?collection=ms004&filename=ms004-108.xml.