Elsas, Oscar, 1871-1924. "Letter from Oscar Elsas to Richard Sloss." Georgia Institute of Technology. Library. Archives, Records Management and Digital Curation Department . 1915-03-18, https://exhibit-archive.library.gatech.edu/fulton_bag/iteme2ff.html?collection=ms004&filename=ms004-066.xml.

Elsas, Oscar, 1871-1924 (1915-03-18). Letter from Oscar Elsas to Richard Sloss. Retrieved from https://exhibit-archive.library.gatech.edu/fulton_bag/iteme2ff.html?collection=ms004&filename=ms004-066.xml

Elsas, Oscar, 1871-1924. "Letter from Oscar Elsas to Richard Sloss." 1915-03-18. June 29, 2025. https://exhibit-archive.library.gatech.edu/fulton_bag/iteme2ff.html?collection=ms004&filename=ms004-066.xml.